探讨常用糖皮质激素对0.4%罗哌卡因锁骨上臂丛神经阻滞麻醉效果的影响

试卷类型：A 深圳外国语学校（集团）龙华高中部2025届高三年级第一次月考化学试卷本试卷共11页，21小题，满分100分。

考试用时75分钟。

注意事项：1. 答卷前，考生务必将自己的姓名、考生号、考场号和座位号填写在答题卡上。

用2B铅笔将试卷类型（A）填涂在答题卡相应位置上。

将条形码横贴在答题卡右上角“条形码粘贴处”。

2. 作答选择题时，选出每小题答案后，用2B铅笔在答题卡上对应题目选项的答案信息点涂黑；如需改动．用橡皮擦干净后，再选涂其他答案。

答案不能答在试卷上。

3. 非选择题必须用黑色字迹的钢笔或签字笔作答，答案必须写在答题卡各题目指定区域内相应位置上；如需改动，先划掉原来的答案，然后再写上新答案；不准使用铅笔和涂改液。

不按以上要求作答无效。

4. 考生必须保持答题卡的整洁。

考试结束后，只需将答题卡交回。

可能用到的相对原子质量：H-1 Na-23 O-16 C-12 Li -7 Na-23 Fe -56 Cu-64 Cl-35.5 S-32一、选择题（共44分，其中1~10题，每小题2分，共20分；11~16题，每小题4分，共24分。

在每小题给出的四个选项中，只有一项是符合题目要求的。

）1．广东有众多非物质文化遗产，如粤绣、剪纸、制香和藤编技艺等。

下列物质的主要成分不是有机高分子材料的是2．下列有关化学用语使用正确的是A．KOH的电子式：B．HClO分子的VSEPR模型：直线形C．乙烷的空间填充模型：D．基态2Fe+的价层电子排布式：3．北京冬奥会成功举办、“华龙一号”核电站、神舟十五号载人飞船发射成功及“C919”飞机等，均展示了我国科技发展的巨大成就。

下列相关叙述正确的是A ．冬奥会“飞扬”火炬所用的燃料2H 为极性分子B ．“C919”飞机机身使用的碳纤维材料属于新型无机非金属材料C ．载人飞船采用了太阳能刚性电池阵，将化学能转化为电能供飞船使用D ．“华龙一号”核电站以铀为核裂变原料，23592U 与23892U 互为同素异形体 4．生命活动需要一系列的复杂的化学过程来维持，食物中的营养物质是这些过程的能量基础。

B-46Characteristics B-50Specifications B-48System Configuration B-47Features B-46Brushless DC Motor SystemsAXU SeriesThe AXU Series combines a compact, brushless DC motor with a speed control unit. These systems provide space savings, easy wiring and simple operation.ⅥFeaturesⅷEasy Connection and Simple OperationJust connect the motor connector to the control unit, and the AXU is ready for immediate use. The rate of rotation is easy to adjust using the speed control dial on the front of the speed control unit.ⅷThin and CompactCompared to an AC speed control motor, the use of a brushless DC motor significantly reduces the size of the motor.Motor Length: 1.65 inch (42 mm) for 10 W, 25 W2.24 inch (57 mm) for 40 W, 90 WⅷWide Speed Range and Constant TorqueEven with an available speed range of 100ϳ2000 r/min, the AXUSeries motor maintains a constant torque.ⅷExternal Control PossibleRun/Stop, rotation direction and instantaneous stops can be controlled with external signals.●Superior Speed StabilitySpeed regulation characteristics are Ϫ2% maximum with load, Ϯ1% maximum with voltage and Ϯ1% maximum with temperature.●Acceleration/Deceleration FunctionsAXU Series motors can be set to accelerate and decelerate when the start and stop input is used.●Protective FunctionsThe AXU Series is equipped with protective functions to handle overload, overvoltage, out-of-phase, undervoltage and overspeed. When an abnormality is detected, an alarm is output and the motor comes to a stop.●Motor Construction IP65A grade IP65 indicates protection against jets of water. It is safety if get splashed accidentally. However it is notsuitable for washing the motor nor being operated under the circumstance of being splashed constantly.External Control SignalControl UnitMotorThe gearhead shown in the photograph is sold separately.●When the system is approved under various safety standards, the model names on the motor and control unit nameplates are the approved model names.List of Motor and Control Unit Combinations ➝Page B-57●Details of Safety Standards ➝Page G-2●The EMC value changes according to the wiring and layout. Therefore, the final EMC level must be checked with the motor/control unit incorporated in the equipment.(Sold Separately)B-47Dimensions B-51Connection and Operation B-55Motor and Control Unit Combinations B-57Mounting Brackets Control UnitFlexible Couplings MotorThe system configuration shown is an example. Other configurations are available.ⅥProduct Number CodeⅷMotor and Control UnitⅷGearheadAXU 4 25 A - GNShaft Type GN : Pinion Shaft (for use with GN gearhead)GU : Pinion Shaft (for use with GU gearhead)A : Round ShaftVoltage A : Single-Phase 100-115 VACC : Single-Phase 200-230 VAC S : Three-Phase 200-230 VACOutput Power 10: 10 W (1/75 HP)25: 25 W (1/30 HP)40: 40 W (1/19 HP)90: 90 W (1/8 HP)Motor Frame Size 2: 2.36 in. sq. (60 mm sq.)4: 3.15 in. sq. (80 mm sq.)5: 3.54 in. sq. (90 mm sq.)Series AXU :AXU Series4 GN 50 KAType of Bearings and Shaft SizeKA : Ball bearing type and inch-sized output shaftKHA : Ball bearing type and inch-sized output shaft for higher torqueGear Ratio(Example)50: Gear ratio of 50:110X : Denotes decimal gearhead with 10:1 gear ratioGearhead Type GN : GN type (for use with GN -type pinion shaft motor)GU : GU type (for use with GU -type pinion shaft motor)Gearhead Frame Size 2: 2.36 in. sq. (60 mm sq.)4: 3.15 in. sq. (80 mm sq.)5: 3.54 in. sq. (90 mm sq.)●Gearheads must match the motor installation dimensions and shaft type.ⅥProduct LineⅷAXU Series5GU ⅪKHA (High Power Type)5GU10XK (Decimal Gearhead)[for 5GU ⅪKHA ]●Enter the appropriate gear ratio in the box (Ⅺ) within the gearhead model name.50ϳ180operations, the motor comes to a natural stop if the primary voltage of the driver’s inverter exceeds the permissible value.✽2Motor insulation is recognized as Class A [221°F (105°C)] by UL and CSA standards.B-48Characteristics B-50Specifications B-48Features B-46System Configuration B-47B-49Dimensions B-51Connection and Operation B-55Motor and Control Unit Combinations B-57●AXU210Ⅺ-A : 5:31 in. ϫ5.31 in. (135 mm ϫ135 mm), 0.20 in. (5 mm) thick ●AXU540Ⅺ-A : 7.87 in. ϫ7.87 in. (200 mm ϫ200 mm), 0.20 in. (5 mm) thick ●AXU425Ⅺ-A : 6:50 in. ϫ6.50 in. (165 mm ϫ165 mm), 0.20 in. (5 mm) thick ●AXU590Ⅺ-A :7.87 in. ϫ7.87 in. (200 mm ϫ200 mm), 0.20 in. (5 mm) thick ✽Ambient temperature of the motor is recognized as 32 ˚F ϳ104 ˚F (0 ˚C ϳϩ40 ˚C) by UL and CSA Standards.ⅥGearmotor–Torque TableMaximum T orque When Using a Decimal Gearhead ●2GN ⅪKA with 2GN10XK : 26 lb-in (3 N •m)●5GN ⅪKA with 5GN10XK : 88 lb-in (10 N •m)●4GN ⅪKA ✽with 4GN10XK : 70 lb-in (8 N •m)●5GU ⅪKA with 5GU10XKB : 177 lb-in (20 N •m)✽All gear ratios except 25:1, 30:1, 36:1: 53 lb-in (6 N •m)●5GU ⅪKHA with 5GU10XK : 260 lb-in (30 N •m)ⅥPermissible Overhung Load and Permissible Thrust LoadEnter the gear ratio in the box (Ⅺ) within the model name.●KA type is standard gearhead. KHA type is high-powered gearhead.●A colored background indicates gear shaft rotation in the same direction as the motor shaft; a white background indicates rotation in the opposite direction.●KA type is standard gearhead. KHA type is high-powered gearhead.B-50Characteristics B-50Specifications B-48System Configuration B-47Features B-46ⅥSpeed–Torque Characteristics[N • m ]T o r q u eSpeed [r/min ][0.20.40.1Speed [r/min ]AXU210A-GN /AXU210C-GN /AXU210S-GN AXU210A-A /AXU210C-A /AXU210S-AAXU425A-GN /AXU425C-GN /AXU425S-GN AXU425A-A /AXU425C-A /AXU425S-A[N • m ]T o r q u e[oz-in ]0.050.10[N • m ][oz-in ]0.3Enter the appropriate letter in the box (Ⅺ) within the motor model name. (A : Single-phase 100-115 VAC, C : Single-phase 200-230 VAC, S : Three-phase 200-230 VAC).●Permissible Thrust Load: Avoid thrust loads as much as possible. If a thrust load is unavoidable, keep it to no more than half the motor weight.2Ϫ4 2●Enter the appropriate gear ratio in the box (Ⅺ) within the gearhead model name.Mounting screws are included with gearheads. Dimensions for screws ➝Page B-1334GN25KA~180KA: L = 1.67 (42.5)B-51Connection and Operation B-55Motor and Control Unit Combinations B-57B-52Characteristics B-50Specifications B-48System Configuration B-47Features B-46v Round Shaft TypeAXU425A-A, AXU425C-A, AXU425S-A Round Shaft Type Motor: AXUM425-A Weight: 1.76 lb. (0.8 kg)d A317v Decimal Gearhead(Can be connected to AXU425GN pinion shaft type.)4GN10XKWeight: 0.88 lb. (0.4 kg)d A013v Motor/GearheadAXU540A-GN, AXU540C-GN, AXU540S-GN Pinion Shaft Type Motor Gearhead AXUM540-GN 5GN ⅪKA Weight: 3.1 lb. (1.4 kg)Weight: 3.3 lb. (1.5 kg)d A313AU (5GN3KA ϳ18KA )A313BU (5GN25KA ϳ180KA )v Round Shaft TypeAXU540A-A, AXU540C-A, AXU540S-A Round Shaft Type Motor: AXUM540-A Weight: 3.1 lb. (1.4 kg)v Decimal Gearhead(Can be connected to AXU540GN pinion shaft type.)5GN10XKWeight: 1.32 lb. (0.6 kg)d A0225GN3KA ϳ18KA : L = 1.65 (42)5GN25KA ϳ180KA : L = 2.36 (60)B-53Dimensions B-51Connection and Operation B-55Motor and Control Unit Combinations B-57v Motor/GearheadAXU590A-GU, AXU590C-GU, AXU590S-GU Pinion Shaft Type Motor Gearhead AXUM590-GU 5GU ⅪKA Weight: 3.1 lb. (1.4 kg)Weight: 3.3 lb. (1.5 kg)ⅷKey and Key Slot (Scale 1/2) 2.743 0 v Round Shaft TypeAXU590A-A, AXU590C-A, AXU590S-A Round Shaft Type Motor: AXUM590-A Weight: 3.1 lb. (1.4 kg)v High-Power Type Gearhead5GU ⅪKHA (For AXU590GU type)Weight: 4.2 lb. (1.9 kg)d A038UⅷKey and Key Slot (Scale 1/2)(The key is provided with the gearhead)v Decimal Gearhead5GU10XKB (for 5GU ⅪKA )5GU10XK (for 5GU ⅪKHA )Weight: 1.32 lb. (0.6 kg)d A029v Control UnitAXUD10A, AXUD10C, AXUD10SAXUD25A, AXUD25C, AXUD25SAXUD40A, AXUD40C, AXUD40SAXUD90A, AXUD90C, AXUD90SWeight: 0.88 lb. (0.4 kg)dA293vPanel Cut-Outv Connection Cable (included)B-54Characteristics B-50Specifications B-48Features B-46System Configuration B-47B-55Connection and Operation B-55Motor and Control Unit Combinations B-57ⅥConnection and OperationⅷNames and Functions of Control UnitNotes :●The RUN/STAND-BY switch is not a power ON/OFF switch.●When you want to stop the motor for an extended period, turn off the control unit power.Back of Control Unitsignal terminalsCW inputCOM CCW input SPEED outputALARM outputMotor connectionconnectorPower connection terminals Protective earth terminalFront of Control UnitSpeed potentiometerSpeed setting range is 100ⅷConnection Diagramsv Motor and Control Unit ConnectionMotor ConnectionInsert the motor cable connector into the motor connector (MOTOR) on the control unit. Insert it until a click sound is audible. T o expand the distance between the motor andcontrol unit, use an optional extension cable. The connection can be extended to a maximum of 34.4 feet (10.5 m). Extension cable ➝Page B-57Power ConnectionConnect the included power supply cable to the powersupply terminal of the control unit. When the included power supply cable is not used, use a cable with a diameter equivalent to AWG22 or more. In that case, round crimp terminals with insulation should be used.0mm )Recommended Crimp TerminalsInput terminalsGroundFor the Protective Earth cable, use a cable with a diameter equivalent to AWG18 or more.v OperationThe direction of motor rotation is as viewed from the output shaft end of the motor. "CW" indicates clockwise direction,while "CCW" indicates counterclockwise direction.Operation Using the RUN/STAND-BY SwitchWhen the RUN/ST AND-BY switch is set to the "RUN"position, the motor will run. When it is set to the "ST AND-BY"The direction of rotation depends on how the short circuit bar at the back of control unit is connected. Connect the short circuit bar between the CW and COM or CCW and COM. Do not use the short circuit bar for any other purpose.Operating Using External SignalsSet the RUN/ST ●See "Input Circuit Connection Example" shown on the next page for connection.CW RotationCCW RotationⅷTiming Chartv Operating Using External SignalsRun/direction of Run/instantaneous stop/reversing RUN/STAND-BY SwitchCW inputCCW inputMotor operationSTAND-BYRUNONOFF OFFONCWCCW0.5s ✽When both the CW and CCW inputs are turned on, the motor stops instantaneously.✽Motor does not run for 0.5 s afterinstantaneous stop, if a reversing run signal is input.Note :The CW and CCW input signals must be ON for at least 20 ms.20 ms min.20 ms min.ⅷSignal Input Circuit v Input CircuitvSet the RUN/ST AND-BY switch to the "RUN" position.●Small-capacity switch and relay●Use a small-capacity contact type relay capable of opening and closing 12 VDC, 5 mA.●T ransistor output type controllerRotation Direction of Motor●CW (clockwise) directional operationWhen CW input is turned on, the motor runs in a clockwise direction. When CW input is turned off, the motor stops.●CCW (counterclockwise) directional operationWhen CCW input is turned on, the motor runs in a counterclockwise direction.When CCW input is turned off, the motor stops.When both the CW and CCW inputs are turned on simultaneously, the motor stops instantly. Instantaneous reversing operation is not possible.Notes :●Wait for more than 20 ms when changing input signals of CW and CCW. ●Do not use a solid state relay (SSR) to turn on or off power. The motor and control unit may be damaged if it is used.●When you want to use the controller with a built-in clamp diode, pay attention to the sequence of turning on or off the power.Power ON : Controller ON ➝Control Unit ON Power OFF : Control Unit OFF ➝Controller OFFIf the control unit power is turned on first when connected as shown above, or the controller power is turned off with the control unit power turned on, current will be applied, as indicated by the arrows in the diagram. This may cause the motor to run.When the power is turned on or off simultaneously, the motor may runtemporarily due to differences in power capacity. The controller power must be turned on first, and control unit power must be turned off first.CW COM CCWCW COMCCWCW CCWCOMB-56Characteristics B-50Specifications B-48System Configuration B-47Features B-46ⅷSignal Output Circuit v Output Circuitv Output Circuit Connection ExampleNotes :●The signal output is Open Collector Output.●Use the power supply of 26.4 VDC or less to connect the limit resistance (R) so that output current does not exceed 10 mA.SPEED OutputThe speed output signal is synchronized with the motor speed. The system outputs pulses (with a width ofapproximately 0.5 ms) at a rate of 30 pulses per rotation of the motor output shaft. Y ou can measure the speed output frequency and calculate motor speed.To check the reduced motor speed visually (the speed at the motor output shaft or at the gearhead output shaft), connect a speed indicator SDM496(sold separately). Speed Indicator ➝Page A-214Notes for Connection :●When you want to extend the input/output signal cable, the length must not exceed 6.6ft. (2m). The cable should be as short as possible in order to minimize noise.●Signal wires and motor wires should be kept away from equipment, power cables and other sources of magnetic noise.ⅷSetting the Acceleration/Deceleration TimeThe motor accelerates slowly when it starts up and decelerates slowly when it stops. This acceleration/deceleration time can be set within the range from 0.5 to 10sec (2000 r/min without load). The time can be set using the acceleration/deceleration potentiometer. Remove the front panel of control unit to access the potentiometer.✽The figure shows the control unit with the front panel removed.Motor Speed (r/min) ϭ ϫ 60SPEED Output Frequency [Hz]301TSPEED Output Frequency (Hz) ϭT0.5msB-57Dimensions B-51Connection and Operation B-55Motor and Control Unit Combinations B-57ⅥList of Motor and Control Unit CombinationsⅥAccessories (Sold Separately)ⅷExtension CablesControl Unit Side●Maximum extension length is 34.4 ft. (10.5m).。

QTZ80型塔式起重机安装施工方案一、编制依据：《建筑机械使用安全技术规程》JGJ33—2001《建筑施工检查标准》JGI59—99及上级的有关文件和标准；二、工程概况：三、塔机情况：四、汽车吊的确定及地址承载验算（附25T汽车吊额定起重表及起升高度曲线表）：4.1、从25吨汽车吊参数表中查出该车自重为28.27吨，加辅助工具为30吨。

4.2、当中心水平距（汽车吊与塔吊间）为8米，臂伸到31米时吊重量为5.3吨。

4.3、当中心水平距（汽车吊与塔吊间）为6米，臂伸到25.75米时吊重为7.5吨。

故此确定使用25吨汽车吊吊装该机完全满足要求，因为此时确定汽车吊置放位置与塔机基础中心距为6.5米，基塔初装高度仅为16.4米；本机最重部件仅为4.8吨。

4.4、汽车吊置放位置及地理验算：由于该塔机需装在建筑物的南面纵向13－14轴支付桩上，北为建筑物及临时施工道路和料场；此场地宽约50 米，长约110 米。

从该地试压测量数据证明每平方米承载压力为18吨。

验算：已知⑴地质承载力为18T/㎡；⑵汽车吊自重为30T；⑶塔机部件最大重量为4.8T；⑷25T汽车吊在工作时为4块1㎡的专用液压支腿触地。

计算：⑴此地承载力为：4×1㎡×18T＝72T⑵汽车吊在最大工作量时所需此地承载力为；30T+4.8T=34.8T⑶∵72T＞34.8T∴此地完全满足工作需要，无需其它辅助措施。

五、安装准备工作：5.1、检查基础表面平整度、地脚螺栓情况及砼强度是否达标。

5.2、对需安装的整机及各部件进行检查，特别是液压系统、金属结构、机构等。

5.3、塔机安装队（具备安装资格认可证）进场前，必须有专项安装施工方案，安装主要人员职责分工明确有安装单位有效资质证。

六、安装作业过程中的注意事项：6.1、塔机安装的基本规定：6.1.1、司机、安装工、起重工必须是劳动部门进行效核取得合格证者；严禁无证操作、安装维修塔机。

6.1.2、安装塔机的全过程必须有专人指挥，严禁无指挥操作。

记数方法1、相同的数字连写，所表示的数等于这些数字相加得到的数，如：Ⅲ = 3；2、小的数字在大的数字的右边，所表示的数等于这些数字相加得到的数，如：Ⅷ = 8；Ⅻ = 12；3、小的数字，（限于Ⅰ、X 和C）在大的数字的左边，所表示的数等于大数减小数得到的数，如：Ⅳ= 4；Ⅸ= 9；4、正常使用时，连写的数字重复不得超过三次。

（表盘上的四点钟“IIII”例外）5、在一个数的上面画一条横线，表示这个数扩大1000倍。

注意：1、基本数字Ⅰ、X 、C 中的任何一个，自身连用构成数目，或者放在大数的右边连用构成数目，都不能超过三个；放在大数的左边只能用一个。

2、不能把基本数字V 、L 、D 中的任何一个作为小数放在大数的左边采用相减的方法构成数目；放在大数的右边采用相加的方式构成数目，只能使用一个。

3、V 和X 左边的小数字只能用Ⅰ。

4、L 和C 左边的小数字只能用X。

5、D 和M 左边的小数字只能用C。

6、重复数次：一个罗马数字重复几次，就表示这个数的几倍。

7、右加左减：在较大的罗马数字的右边记上较小的罗马数字，表示大数字加小数字。

在较大的罗马数字的左边记上较小的罗马数字，表示大数字减小数字。

左减的数字有限制，仅限于I、X、C。

比如45不可以写成VL，只能是XLV但是，左减时不可跨越一个位数。

左减数字必须为一位，比如8写成VIII，而非IIX。

右加数字不可连续超过三位，比如14写成XIV，而非XIIII。

（见下方“数码限制”一项。

）8、加线乘千：在罗马数字的上方加上一条横线或者加上下标的Ⅿ，表示将这个数乘以1000，即是原数的1000倍。

同理，如果上方有两条横线，即是原数的1000000倍。

9、数码限制：同一数码最多只能出现三次，如40不可表示为XXXX，而要表示为XL。

例外：由于IV是古罗马神话主神朱庇特（即IVPITER，古罗马字母里没有J和U）的首字，因此有时用IIII代替Ⅳ。

8是4的几倍
4的8倍是32，8是4的2倍，2的4倍是8。

分析过程如下：
4的8倍是多少的数学表达式：48=32。

几的4倍是8的数学表达式：8÷4=2。

扩展资料：
整数的乘法法则：
（1）从个位乘起，依次用第二个因数每位上的数去乘第一个因数；
（2）用第二个因数那一位上的数去乘，得数的末位就和第二个因数的那一位对齐；
（3）再把几次乘得的数加起来。

乘法的运算规律：
（1）乘法交换律：ab=ba
（2）乘法结合律：abc=(ab)c=a(bc)
（3）乘法分配律：（a+b）c=ac+bc；（a-b）c=ac-bc
除法：
（1）把一个数平均分成若干份，求其中的一份；
（2）求一个数里有几个另一个数；
（3）已知一个数的几分之几或百分之几是多少求这个数；
（4）求一个数是另一个数的几倍。

除法的法则：
（1）从被除数的高位除起，除数有几位，就看被除数的前几位，如
果不够除，就多看一位。

（2）除到被除数的哪一位，就把商写在哪一位的上面，如果不够除，就在这一位上商0。

（3）每次除得的余数必须比除数小，并在余数右边一位落下被除数
在这一位上的数，再继续除。

8的整数划分全文共四篇示例，供读者参考第一篇示例：8的整数划分是一个经典的组合数学问题，它指的是将整数8划分成若干个整数之和的方式。

这个问题看似简单，但却涉及到了许多深奥的数学原理和方法。

在这篇文章中，我们将从历史、定义、性质以及计算方法等方面对8的整数划分进行详细的介绍。

我们来了解一下关于整数划分的历史。

整数划分这个概念最早可以追溯到欧几里得的《算术》一书中，他研究了将整数划分成若干个整数之和的问题。

而关于8的整数划分的讨论可以追溯到19世纪，当时的数学家们开始研究将整数8划分成若干个整数之和的方式，并提出了各种计算方法和性质。

在介绍8的整数划分之前，我们先来看一下整数划分的一般定义。

整数划分指的是将一个正整数n拆分成若干个正整数之和的方式，其中各个正整数可以是相同也可以是不同的。

对于整数8而言，它的所有划分方式包括8，7+1，6+2，6+1+1，5+3，5+2+1，5+1+1+1，4+4，4+3+1，4+2+2，4+2+1+1，4+1+1+1+1，3+3+2，3+3+1+1，3+2+2+1，3+2+1+1+1，3+1+1+1+1+1，2+2+2+2。

在这些划分方式中，我们可以发现有些方式是等价的，比如8和1+1+1+1+1+1+1+1就属于同一种划分方式。

这就涉及到了整数划分中的“等价划分”概念。

在整数划分中，如果两种划分方式的每个划分项的数量和数值都相同，那么这两种划分方式就是等价的。

通过等价划分的概念，我们可以排除掉重复的划分方式，从而减少计算的复杂度。

接下来，我们来探讨一下8的整数划分的性质。

我们可以得出结论：8的整数划分总共有22种。

这个结论可以通过计算方法来验证，也可以通过数学理论和推导来证明。

我们可以观察到8的整数划分中，最大的划分项是8，最小的划分项是1。

这个性质在整数划分中是非常常见的，通常会有一个最大划分项和一个最小划分项，中间各种划分项的组合方式则有多种多样。

在8的整数划分中，我们还可以发现几种特殊的整数划分方式。

罗马数字对照阿拉伯数字表、希腊字母表Ⅰ1 ⅩⅣ14
Ⅱ2 ⅩⅤ15
Ⅲ3 ⅩⅥ16
Ⅳ4 ⅩⅦ17
Ⅴ5 ⅩⅧ18
Ⅵ6 ⅩⅨ29
Ⅶ7 ⅩⅩ20
Ⅷ8 L 50
Ⅸ9 C 100
Ⅹ10 CL 150
Ⅺ11 CC 200
Ⅻ12 CCL 250
ⅩⅢ13 CCC 300
希腊字母表
大写小写英文读音意义
Ααalpha 角度；系数
Ββbeta 磁通系数；角度；系数
Γγgamma 电导系数（小写）
Γδdelta 变动；密度；屈光度
Δε,e epsilon 对数之基数
Εδzeta 系数；方位角；阻抗；相对粘度；原子序数
Ζεeta 磁滞系数；效率（小写）
Θζ,ζtheta 温度；相位角
Ηηiota 微小，一点儿
Κθkappa 介质常数
∧ιlambda 波长（小写）；体积
Μκmu 磁导系数；微（千分之一）；放大因数（小写）
Νλnu 磁阻系数
Ξξ xi
Οο omicro
∏πpi 圆周÷直径=3.1416
Ρρ,ρrho 电阻系数（小写）
∑ζ,s sigma 总和（大写），表面密度；跨导（小写）
Τηtau 时间常数
Υυupsilon 位移
Φθphi 磁通；角
Φχ chi
Χψpsi 角速；介质电通量（静电力线）；角
Ψωomega 欧姆（大写）；角速（小写）；角
此资料来源于网络。

B-116Specifications B-118Characteristics B-121System Configuration B-117Features B-116AC Motor SystemsUS SeriesThe US Series combines a control unit and an AC speedcontrol motor. Connection between the motor and control unit is simplified by an easy-to-use connector. The US Series is designed for applications where remote control of the motorspeed and easy installation are required.ⅥFeaturesⅷEasy ConnectionControl units combine the control pack, potentiometer and capacitor into one device (except 60 W and 90 W models). Operation is possible just by connecting the control unit into the power supply after connecting the motor and control unit together using the connector.ⅷEasy OperationThe speed can be set easily with the potentiometer on the front panel of the control unit.ⅷApproved by Safety StandardsThe US Series is recognized by UL/CSA standards and conforms to EN standards. CE marking is used in accordance with the Low Voltage Directives.●When the system is approved under various safety standards, the model names on the motor and control unit are the approved model names.List of Motor and Control Unit Combinations ➝Page B-130●Details of Safety Standards ➝Page G-2●Single-Phase 220/230 VAC models conform to EMC directives.The EMC value changes according to the wiring and layout. Therefore, the final EMC level must be checked with the motor/control unit incorporated in the user's equipment.Gearhead show in the photograph is sold separately.ⅥProduct LineUS206-401U US206-001U1/5015US315-401U US315-001U 1/3025US425-401U US425-001U 1/1940US540-401U US540-001U 1/1260US560-501U US560-001U 1/890US590-501UUS590-001UUS206-402E US206-002E 1/5015US315-402E US315-002E 1/3025US425-402E US425-002E 1/1940US540-402E US540-002E 1/1260US560-502E US560-002E 1/890US590-502EUS590-002EB-117Dimensions B-123Connection and Operation B-128List of Motor and Control Unit Combinations B-130Right-Angle Gearhead (Sold separately)Motor Mounting BracketsFlexible Couplings Gearhead(Sold separately)MotorControl UnitThe system configuration shown is an example. Other configurations are available.ⅥProduct Number CodeU105-605US Included Capacitor U : 110/115 VAC E : 220/230 VAC Motor Type0: Induction Motor (Continuous rating)Shaft Type 0: Round Shaft4: GN Pinion Shaft (for use with GN -type gearhead)5: GU Pinion Shaft (for use with GU -type gearhead)Output Power 06: 6 W 15: 15 W 25: 25 W40: 40 W 60: 60 W 90: 90 WMotor Frame Size2: 2.36 in. sq. (60 mm sq.)3: 2.76 in. sq. (70 mm sq.)4: 3.15 in. sq. (80 mm sq.)5: 3.54 in. sq. (90 mm sq.)Voltage1: Single-Phase 110/115 VAC 2: Single-Phase 220/230 VACProduct Number Code of the Gearheads ➝Page A-16SeriesUS : US SeriesUS206Type 2GN10XK (Decimal Gearhead)US315Type 3GN3KA ϳ3GN180KA 3GN10XK (Decimal Gearhead)US425Type 4GN3KA ϳ4GN180KA 4GN10XK (Decimal Gearhead)US540Type 5GN3KA ϳ5GN180KA 5GN10XK (Decimal Gearhead)US560,US590Type 5GU3KA ϳ5GU180KA5GU10XKB (Decimal Gearhead)Hollow Shaft4GN3.6RH 4GN180RH 5GN3.6RH ϳ5GN180RH 5GU3.6RH ϳ5GU180RH 4GN3.6RAA ϳ4GN180RAA 5GN3RAA ϳ5GN180RAA 5GU3RAA ϳ5GU180RAASolid ShaftUS590Type5GU50KHA ϳ5GU180KHA 5GU10XK (Decimal Gearhead)ⅥSpecificationsZ: Impedance Protected.T: Contains a built-in thermal protector. If a motor overheats for any reason, the thermal protector is opened and the motor stops. When the motor temperature drops, the thermal protector closes and the motor automatically restarts. Be sure to turn off the power before inspecting.●The speed ranges shown are under no load conditions.●The "U" and "E" at the end of the model number indicate that the unit includes a capacitor. These letters are not listed on the motor nameplate.System Configuration B-117Features B-116B-119Dimensions B-123Connection and Operation B-128List of Motor and Control Unit Combinations B-130ⅥPermissible Torque when a Gearhead is AttachedWhen connecting a decimal gearhead with a gear ratio of 10:1 between the motor and the gearhead, the rotation rate is reduced.The permissible torque with decimal gearheads are as follows.2GN ⅪKA/2GN10XK 26 lb-in/3 N·m 3GN ⅪKA/3GN10XK 44 lb-in/5 N·m4GN ⅪKA/4GN10XK 70 lb-in/8 N·m (Gear Ratio 25ϳ36 53 lb-in/6 N·m)5GN ⅪKA/5GN10XK 88 lb-in/10 N·m 5GU ⅪKA/5GU10XKB 177 lb-in/20 N·m 5GU ⅪKHA/5GU10XK 260 lb-in/30 N·m●Gearheads and decimal gearheads are sold separately.●Enter the gear ratio in the box (Ⅺ) within the model name.●A colored background indicates gear shaft rotation in the same direction as the motor shaft; a white background indicates rotation in the opposite direction.✽The speed range is under no load conditions.●Gearheads and decimal gearheads are sold separately.●Enter the gear ratio in the box (Ⅺ) within the model name.●A colored background indicates gear shaft rotation in the same direction as the motor shaft; a white background indicates rotation in the opposite direction.ⅥGearmotor — Torque Table when a Right-Angle Gearhead is Attached➝Page A-196ⅥPermissible Overhung Load and Permissible Thrust LoadMotor (Round shaft type)➝Page A-11Gearhead➝Page A-11ⅥPermissible Load Inertia J for Gearhead➝Page A-12B-120Specifications B-118Characteristics B-121Features B-116System Configuration B-117B-121Connection and Operation B-128List of Motor and Control Unit Combinations B-130ⅥSpeed — Torque CharacteristicsUS206-401U US206-402E US206-001UUS206-002EUS315-401U US315-402E US315-001UUS315-002EUS425-401U US425-402E US425-001UUS425-001ESpeed [r/min]1400160050 Hz 230 VAC 60 Hz 230 VAC 50 Hz 220 VAC [o z -i n ][m N ·m ]50100150200250300T o r q u e 110 VAC1030[m N ·m ]14001600Speed [r/min]150200250300[o z -i n ]100501535400T or q u e14001600Speed [r/min]50 Hz 230 VAC 60 Hz 230 VAC 50 Hz 220 VAC [o z -i n ][m N ·m ]04080120160T o r q ueo z -i n ]14001600Speed [r/min]m N ·m ]T o r q u e110 VAC 1800100050090Speed [r/min]15001400160050 Hz 230 VAC 60 Hz 230 VAC 50 Hz 220 VAC 60 Hz 220 VAC[o z -i n ][m N ·m ]20406080T o r q ue02468[o z -i n ]20406080[m N ·m ]14001600Speed [r/min]110 VAC 100T o r q u eB-122Specifications B-118Characteristics B-121System Configuration B-117Features B-116US540-401U US540-402E US540-001U US540-002EUS560-501U US560-502E US560-001UUS560-002EUS590-501U US590-502E US590-001UUS590-002E180********90Speed [r/min]15001400160050 Hz 230 VAC 60 Hz 230 VAC 50 Hz 220 VAC [o z -i n ][m N ·m ]0.20.40.60.81.01.2T o r q u e110 VAC12080604020[o z -i n ]1.00.80.60.40.2[N ·m ]1800150014001600100050090Speed [r/min]T o r q u e1800150014001600100050090Speed [r/min]50 Hz 230 VAC 60 Hz 230 VAC 50 Hz 220 VAC [o z -i n ][m N ·m ]0.20.40.60.81.0T o r q u e[o z -i n ]1.00.80.60.40.2[N ·m ]014001600Speed [r/min]110 VAC 0T o r q u e 18001500140016001000500Speed [r/min]9050 Hz 230 VAC 60 Hz 230 VAC 50 Hz 220 VAC [o z -i n ][m N ·m ]0.10.20.30.40.5T o r q ue110 VAC 504030[o z -i n ]2000.40.30.20.1[N ·m ]14001600Speed [r/min]10600T o r q u eⅥDimensions Scale 1/4, Unit = inch(mm)Mounting screws are included with gearheads. Dimensions for screws ➝Page A-223 Enter the gear ratio in the box (Ⅺ) within the model name.ⅷMotor/Gearheadd A078AU (2GN3KAϳ18KA)2GN3KA~18KA:L = 1.18 (30)2GN25KA~180KA: L = 1.57 (40)Gearhead: 2GNⅪKAWeight: 0.88 lb. (0.4 kg)US206-401U, US206-402E(Pinion Shaft Type)Motor: USM206-401W, USM206-402WWeight: 1.76 lb. (0.8 kg)ⅷRound Shaft TypeUS206-001U, US206-002EMotor: USM206-001W, USM206-002WWeight: 1.76 lb. (0.8 kg)d A354ⅷDecimal GearheadCan be connected to US206GN pinion shaft type2GN10XKWeight: 0.44 lb. (0.2 kg)d A003ⅷMotor/Gearheadd A079AU (3GN3KAϳ18KA)A079BU (3GN25KAϳ180KA)3GN3KA~18KA:L = 1.26 (32)3GN25KA~180KA: L = 1.65 (42)Gearhead: 3GNⅪKAWeight: 1.21 lb. (0.55 kg)US315-401U, US315-402E(Pinion Shaft Type)Motor: USM315-401W, USM315-402WWeight: 2.6 lb. (1.2 kg)B-123 Dimensions B-123Connection and Operation B-128List of Motor and Control Unit Combinations B-130B-124Specifications B-118Characteristics B-121System Configuration B-117Features B-116ⅷMotor/Gearheadd A081AU (5GN3KAϳ18KA)A081BU (5GN25KAϳ180KA)5GN3KA~18KA:L = 1.65 (42)5GN25KA~180KA: L = 2.36 (60)Gearhead:5GNⅪKAWeight: 3.3 lb. (1.5 kg)US540-401U, US540-402E(Pinion Shaft Type)Motor: USM540-401W, USM540-402WWeight: 5.7 lb. (2.6 kg)ⅷRound Shaft TypeUS540-001U, US540-002EMotor: USM540-001W, USM540-002WWeight: 5.7 lb. (2.6 kg)d A357ⅷDecimal GearheadCan be connected to US540GN pinion shaft type5GN10XKWeight: 1.32 lb. (0.6 kg)d A022ⅷMotor/Gearheadd A082Ud A083UGearhead: 5GUⅪKAWeight: 3.3 lb. (1.5 kg)US590-501U, US590-502E(Pinion Shaft Type)Motor: USM590-501W, USM590-502WWeight: 7.9 lb. (3.6 kg)Gearhead: 5GUⅪKAWeight: 3.3 lb. (1.5 kg)US560-501U, US560-502E(Pinion Shaft Type)Motor: USM560-501W, USM560-502WWeight: 6.2 lb. (2.8 kg)ⅷKey and Key Slot (Scale 1/2)B-125 Dimensions B-123Connection and Operation B-128List of Motor and Control Unit Combinations B-130B-126Specifications B-118Characteristics B-121System Configuration B-117Features B-116B-127Dimensions B-123Connection and Operation B-128List of Motor and Control Unit Combinations B-130v Control UnitFor use with US206,US315, US425and US540types USP206-1U/USP206-2E USP315-1U/USP315-2E USP425-1U/USP425-2E USP540-1U/USP540-2E Weight: 0.99 lb. (0.45 kg)d A817W/ConnectorHousing: 1-480270-0 (AMP)For use with US560and US590types USP560-1U/USP560-2E USP590-1U/USP590-2E Weight: 1.1 lb. (0.5 kg)d A818v Panel Cut-Out for Control UnitInstallation Method by Cutting a HoleB-128Specifications B-118Characteristics B-121System Configuration B-117Features B-116ⅷCapacitor (included with the motors)Capacitor Dimensions Unit = inch (mm )●If you need to order a capacitor without a motor, add "-C" to the capacitor model name shown. A capacitor cap is included with a capacitor.US560-Ⅺ01UUS560-Ⅺ02ECH40BFAUL 2.28 (58)0.93 (23.5) 1.46 (37) 2.5 (70)US590-Ⅺ01U CH200CFAUL 2.28 (58) 1.14 (29) 1.61 (41) 3.4 (95)US590-Ⅺ02ECH60BFAUL2.28 (58)1.14 (29)1.61 (41)3.0 (85)ⅷConnection DiagramsUS206, US315, US425, US540types Uni-directional Rotation:Motor Speed Indicator (optional)SDM496Pin No.Bi-directional Rotation:Switch Specifications: 250 VAC, Inductive Load, 5 A min.US560, US590typesMotor Speed Indicator (optional)SDM496Uni-directional Rotation:Switch Specifications: 250 VAC, Inductive Load, 5 A min.●If an extension between the motor and control unit is required, an extension cable can be used (sold separately).Using the longest cord, the distance can be extended up to 15.7 feet (4.75 m).➝Page B-130ⅥConnection and OperationSpeed PotentiometerRUN/STAND-BY SwitchIn the diagrams above, the motor shaft rotates in the clockwise direction. When changed to the dotted line [N (CCW)] position,the motor shaft rotates in the counterclockwise direction.B-129ⅷInner Connection Diagram for 4-Terminal CapacitorT erminals of the capacitor are connected as shown in the figure. For lead wire connection, use one lead wire per terminal.ⅷOperation MethodThere is a difference in operation method between theUS206, US315, US425, US540types and the US560,US590types.US206, US315, US425and US540typesConnect the motor lead wire connectors to the control unit.Then connect the power cord to the power supply. When the RUN/ST AND-BY switch of the control unit is switched to RUN, the motor rotates in the clockwise (CW) direction as seen from the motor shaft.(Control units are set for clockwise rotation at shipment. The direction of rotation for the gearhead output shaft may be the reverse of the direction of the motor shaft depending on the gear ratio.)US560and US590typesConnect the control unit and the motor, and attach thecapacitor wire leading from the control unit to the capacitor.Next, plug in the power supply cord into an AC power supply.When the RUN/ST AND-BY switch located on the control unit is switched to RUN, the motor will rotate in the direction set by the connection of the capacitor.(Control units are set for clockwise rotation at shipment. The direction of rotation for the gearhead output shaft may be the reverse of the direction of the motor shaft depending on the gear ratio.)ⅷChanging SpeedWhen the potentiometer located on the front of the control unit is turned in a clockwise direction, motor speedincreases; when turned in the counter clockwise direction,motor speed decreases. Motor speed can be set and adjusted over a range of 90 r/min-1600 r/min.ⅷStoppingWhen the RUN/ST AND-BY switch on the control unit is set to ST AND-BY , the motor stops. This switch is not a powerON/OFF switch. If the motor is to be stopped for a long time,a separate power ON/OFF switch should be installed.ⅷChanging the Direction of RotationUS206, US315, US425and US540types(Capacitor is included in the control unit.)Uni-directional RotationWhen the direction of motor rotation needs to be reversed for reasons relating to transmission mechanisms such asgearheads, change the terminal used for attaching the power cord, located at the back of control unit, from terminal N (CW) to terminal N (CCW). The power cord connections are located at terminals L and N (CW) when shipped. See the diagram on the previous page.(This should always be done with the power OFF .)Bi-directional RotationInstall an additional power switch (SW1) and CW/CCW switch (SW2) as shown on previous page, and use these switches to change the direction of rotation. (Motor cannot be reversed instantaneously. T urn SW1 off and wait until the motor has come to a complete stop before switching SW2.)See the diagram on the previous page.US560and US590types(Connection of the included capacitor is necessary.) Uni-directional RotationWhen the direction of motor rotation needs to be reversed,change the terminal used for attaching the power cord,located at the back of control unit, from terminals N (CW)-N (COM) to terminals N (COM)-N (CCW). The power cordconnections are located at terminals N (CW)-N (COM) when shipped. See the diagram on the previous page.(This should always be done with the power OFF .)Bi-directional RotationInstall an additional power switch (SW1) and CW/CCWswitch (SW2) as shown on the previous page, and use these switches to change the direction of rotation. (Motor cannot be reversed instantaneously. T urn SW1 off and wait until the motor has come to a complete stop before switching SW2.) See the diagram on the previous page.B-1301/1251/501/301/191/121/861525406090US206-401U US206-001U US315-401U US315-001U US425-401U US425-001U US540-401U US540-001U US560-501U US560-001UUS590-501U US590-001U1/1251/501/301/191/121/861525406090USM206-401W USM206-001W USM315-401W USM315-001W USM425-401W USM425-001W USM540-401W USM540-001W USM560-501W USM560-001W USM590-501W USM590-001WUSP206-1U USP315-1U USP425-1U USP540-1U USP560-1U USP590-1UUS206-402E US206-002E US315-402E US315-002E US425-402E US425-002E US540-402E US540-002E US560-502E US560-002E US590-502E US590-002EUSM206-402WUSM206-002W USM315-402W USM315-002W USM425-402W USM425-002W USM540-402W USM540-002W USM560-502W USM560-002W USM590-502W USM590-002WUSP206-2E USP315-2E USP425-2E USP540-2E USP560-2E USP590-2EⅥList of Motor and Control Unit CombinationsModel numbers for motor and control unit combinations are shown below.ⅥExtension Cable (Sold separately)When installing the motor and control unit in different locations, an extension cable can be used (sold separately). This enablesremote operation at a distance of up to 15.7 feet. (4.75 m).ⅷApplicable Products:US206, US315, US425, US540ⅷSingle-Phase 110/115 VACⅷSingle-Phase 220/230 VAC6.6 (2)9.8 (3)13.1 (4)Motor SideMotor SideCC02SS052CC03SS052CC04SS052ⅷApplicable Products:US560, US5906.6 (2)9.8 (3)13.1 (4)CC02SS2CC03SS2CC04SS2。