ch01
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ch01系统基础信息模块详解第1章系统基础信息模块详解1.1 系统性能信息模块 psutil解决VMWare在Windows10的安装问题: 安装VC Redistributable 2017解决虚拟机的上⽹问题:修改VMWare 的⽹络设置解决PuTTY连接不上虚拟机的问题:修改VMnet8的IPv4地址在Centos7安装pip在Centos7安装psutil模块#1、以root⾝份登陆CentOS依次执⾏以下命令:wget https:///packages/source/p/psutil/psutil-2.1.3.tar.gz --no-check-certificatetar zxvf psutil-2.1.3.tar.gzcd psutil-2.1.3/python setup.py install#2、在执⾏以上命令最后的安装命令时,遇到以下问题psutil/_psutil_linux.c:12:20: fatal error: Python.h: No such file or directory这样的错误提⽰,表⽰缺少Python-dev的依赖环境,直接安装Python-devel即可yum -y install python-devel*安装完后,再执⾏ python setup.py install 即可安装完成提⽰:Installed /usr/lib64/python2.7/site-packages/psutil-2.1.3-py2.7-linux-x86_64.eggProcessing dependencies for psutil==2.1.3Finished processing dependencies for psutil==2.1.31.1.1 获取系统性能信息(1) CPU信息>>> import psutil/usr/lib64/python2.7/site-packages/psutil-2.1.3-py2.7-linux-x86_64.egg/_psutil_linux.py:3: UserWarning: Module _psutil_linux was already imported from /usr/lib64/python2.7/site-packages/psutil-2.1.3-py2.7-linux-x86_64.egg/_psutil_linux.pyc, but >>> psutil.cpu_times()scputimes(user=46.0, nice=0.27, system=87.6, idle=10040.74, iowait=52.76, irq=0.0, softirq=9.79, steal=0.0, guest=0.0, guest_nice=0.0)>>> psutil.cpu_times().user46.03>>> psutil.cpu_count()2>>> psutil.cpu_count(logical=False)2>>>(2)内存信息>>> mem = psutil.virtual_memory()>>> memsvmem(total=1907970048L, available=1505476608L, percent=21.1, used=915431424L, free=992538624L, active=423669760, inactive=202493952, buffers=2134016L, cached=510803968)>>> mem.total1907970048L>>> mem.free992538624L>>> psutil.swap_memory()sswap(total=2147479552L, used=0L, free=2147479552L, percent=0.0, sin=0, sout=0)>>>(3)磁盘信息>>> psutil.disk_partitions()[sdiskpart(device='/dev/sda3', mountpoint='/', fstype='xfs', opts='rw,seclabel,relatime,attr2,inode64,noquota'), sdiskpart(device='/dev/sda1', mountpoint='/boot', fstype='xfs', opts='rw,seclabel,relatime,attr2,inode64,noquota')]>>> psutil.disk_usage('/')sdiskusage(total=19001245696, used=4522000384, free=14479245312, percent=23.8)>>> psutil.disk_io_counters()sdiskio(read_count=14186, write_count=8265, read_bytes=432613888, write_bytes=230467072, read_time=225143, write_time=59109)>>> psutil.disk_io_counters(perdisk=True){'sr0': sdiskio(read_count=18, write_count=0, read_bytes=1052672, write_bytes=0, read_time=761, write_time=0), 'sda2': sdiskio(read_count=54, write_count=0, read_bytes=2527232, write_bytes=0, read_time=335, write_time=0), 'sda3': sdiskio(r >>>(4)⽹络信息>>> _io_counters()snetio(bytes_sent=1227849, bytes_recv=34910887, packets_sent=12412, packets_recv=29882, errin=0, errout=0, dropin=0, dropout=0)>>> _io_counters(pernic=True){'lo': snetio(bytes_sent=14274, bytes_recv=14274, packets_sent=144, packets_recv=144, errin=0, errout=0, dropin=0, dropout=0), 'ens33': snetio(bytes_sent=1216087, bytes_recv=34904091, packets_sent=12290, packets_recv=29824, errin=0, >>>(5)其他系统信息>>> ers()[suser(name='root', terminal='tty1', host='', started=1597921920.0), suser(name='root', terminal='pts/0', host='192.168.135.1', started=1597933824.0), suser(name='chenjo', terminal='pts/1', host='192.168.135.1', started=1597923712.0)]>>> import datetime>>> psutil.boot_time()1597925932.0>>> datetime.datetime.fromtimestamp(psutil.boot_time()).strftime("%Y-%m-%d %H:%M:%S")'2020-08-20 20:18:52'>>>1.1.2 系统进程管理⽅法(1)进程信息>>> import psutil>>> psutil.pids()[1, 2, 3, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 36, 37, 38, 39, 47, 48, 49, 50, 51, 53, 66, 97, 638, 649, 655, 664, 666, 805, 810, 1678, 1683, 1824, 1828, 2876, 2877, 2887, 2890, 2893, 2894, 2895, 2896, >>> p = psutil.Process(17557)>>> <bound method of <psutil.Process(pid=17557, name='python') at 139991911690768>>>>> p.exe()'/usr/bin/python2.7;5f3e6c2d'>>> p.cwd()'/tmp'>>> p.status()'stopped'>>> p.create_time()1597928634.08>>> p.uids()puids(real=0, effective=0, saved=0)>>> p.gids()pgids(real=0, effective=0, saved=0)>>> p.cpu_times()pcputimes(user=0.01, system=0.0)>>> p.cpu_affinity()[0, 1]>>> p.memory_percent()0.27350031021032045>>> p.memory_info()pmem(rss=5218304, vms=133287936)>>> p.io_counters()pio(read_count=118, write_count=9, read_bytes=0, write_bytes=0)>>> p.connections()[]>>> p.num_threads()1>>>(2)popen类的使⽤import psutilfrom subprocess import PIPEp = psutil.Popen(["/usr/bin/python", "-c", "print('hello')"], stdout=PIPE)()ername()p.cpu_times()municate()#p.cpu_times()[root@ansible mycode]# pythonPython 2.7.5 (default, Apr 2 2020, 13:16:51)[GCC 4.8.5 20150623 (Red Hat 4.8.5-39)] on linux2Type "help", "copyright", "credits" or "license" for more information.>>> import psutil>>> from subprocess import PIPE>>> p = psutil.Popen(["/usr/bin/python", "-c", "print('hello')"], stdout=PIPE)>>> ()'python'>>> ername()'root'>>> p.cpu_times()pcputimes(user=0.01, system=0.0)>>> municate()('hello\n', None)>>>参考提⽰1.1.1节⽰例参考https:///giampaolo/psutil1.1.1节模块说明参考官⽹/en/latest1.2 实⽤的IP地址处理模块IPyCentos7上安装ipy>>> from IPy import IP>>> IP('10.0.0.0/8').version()4>>> IP('::1').version()6>>>>>> ip = IP('192.168.0.0/16')>>> print ip.len()65536>>> for x in ip:... print(x)...192.168.0.0192.168.0.1192.168.0.2192.168.0.3...>>> print(IP('192.168.1.0').make_net('255.255.255.0'))192.168.1.0/24>>> print(IP('192.168.1.0/255.255.255.0', make_net=True))192.168.1.0/24>>> print(IP('192.168.1.0-192.168.1.255', make_net=True))192.168.1.0/24>>>wantprefixlen 的取值及含义:wantprefixlen = 0,⽆返回,如192.168.1.0。
第1章 数控加工自动编程技术概述教学提示:● CAD/CAM将产品的设计与制造作为一个整体进行规划和开发,实现了信息处理的高度一体化,具有高智力、知识密集、综合性强和效益高等特点。
● CAD/CAM系统需要对产品设计、制造全过程的信息进行处理,包括设计、制造过程中的数值计算、设计分析、绘图、工程数据库、工艺设计及加工仿真等各个方面。
●数控编程一般可分为手工编程和自动编程。
在产品的设计和制造中,有关几何形状的描述、结构分析、工艺过程设计和数控加工等方面的技术都与几何形状有关,几何形状的定义和描述即建立系统的数据模型是其中的核心部分,它为设计、分析计算和制造提供了统一的数据和有关信息。
教学要求:通过学习,了解CAD/CAM技术发展的历史与未来、CAD/CAM的软件和硬件及系统结构组成、常用CAD/CAM软件的功能和特点,了解CAD/CAM一般的作业流程,从而对先进制造技术的框架内容有一个比较完整、清晰的了解,为后续学习奠定基础。
1.1 CAD/CAM基础知识1.1.1 基本概念CAD/CAM就是计算机辅助设计与计算机辅助制造(Computer Aided Design and Computer Aided Manufacturing),是一项利用计算机作为主要技术手段,通过生成和运用各种数字信息与图形信息,帮助人们完成产品设计与制造的技术。
CAD主要指使用计算机和信息技术来辅助完成产品的全部设计过程(指从接受产品的功能定义到设计完成产品的材料信息、结构形状和技术要求等,并最终以图形信息的形式表达出来的过程)。
CAM一般有广义和狭义两种理解,广义的CAM包括利用计算机进行生产的规划、管理和控制产品制造的全过程;狭义的CAM仅包括计算机辅助编制数控加工的程序。
本书所说的CAM一般是指狭义的CAM。
CAD/CAM技术的发展和应用水平已成为衡量一个国家科技现代化和工业现代化水平的重要标志之一。
CAD/CAM技术应用的实际效果是:提高了产品设计的质量,缩短了产品设计制造周期,由此产生了显著的社会经济效益。
第一章 机型构成及规格● 打开③连接器盖,将主机与扩展单元, 扩展模块以排线连接。
● 打开②连接器盖,将通讯模块与主机以排线连接。
● ④为输入输出端子,电源,RUN 状态及ERROR 状态指示灯。
● ⑤为分离式欧规输入端子台,⑥ 为分离式欧规输出端子台。
● ⑦为EEPROM 卡。
主机与扩展模块型号 EX - 32 M R -无记号:AC110/220V 电源, D : DC24V 输入 输出形式: R:继电器输出, T:晶体管输出 M:主机, E:扩展机 点数 (16,24,32)无:可扩展,2 n 可扩展, 1n:可扩展,1s:不可扩展, 系列总称安装尺寸Ex1s, Ex1n, Ex2n性能规格一般规格Ex1s Ex1n输入规格Ex1s Ex1n输出规格注意事项# # # Ex1s Ex1n系列晶体管输出规格无限流电阻2.2K # # # # # # EX32MT-P机种晶体管输出规格具限流电阻2.2K # # #电源接线示例( NPN输入方式 ) AC85 ~264V 50/60Hz扩排线充模块 电源接线示例 ( PNP输入方式 )14MT机型端子台信号及接线示例(使用内部电源模式)16MR机型端子台信号(Sink/Source由内部设定,出厂时固定为Sink NPN模式)24MR机型端子台信号(24V – S/S = NPN模式,24G – S/S = PNP模式)AC85 ~264V 50/60Hz24MT机型端子台信号及接线示例(使用内部电源模式)AC85 ~264V 50/60HzAC85 ~264V 50/60Hz32MT机型端子台信号及接线示例(使用内部电源模式) AC85 ~264V 50/60Hz32MT机型端子台信号及接线示例(使用外部电源模式) AC85 ~264V 50/60Hz32MR机型端子台信号(24V – S/S = NPN模式,24G – S/S = PNP模式)AC85 ~264V 50/60Hz16EX扩展模块端子台信号(24V – S/S = NPN模式,24G – S/S = PNP模式)16ER, 16ET扩展模块端子台信号(24V – S/S = NPN模式,24G – S/S = PNP模式)24ER, 24ET扩展模块端子台信号(24V – S/S = NPN模式,24G – S/S = PNP模式)32ER, 32ET扩展模块端子台信号(24V – S/S = NPN模式,24G – S/S = PNP模式)第一章 机型构成及规格8EX 扩展模块端子台信号8ER, 8ET 扩展模块端子台信号8EYR, 8EYT 扩展模块端子台信号485ADP 扩展模块端子台信号2DA 特殊功能模块端子台信号2AD 特殊功能模块端子台信号2AD-LD 特殊功能模块端子台信号8AD 特殊功能模块端子台信号LYPLC Ex, Ex1s, Ex1n, Ex2n 系列RS232-C 界面脚位图♦ LYPLC Ex, Ex1s, Ex1n, Ex2n 系列上视图♦ 若与附有电源的数据处理器相连接时, 5V+请勿互相连接。
1. 汽轮机概述1.1概述1.1.1产品概述本产品作为国产首台超临界机组,采用与三菱公司联合设计、生产的模式。
本机组为超临界、一次中间再热、单轴、三缸、四排汽凝汽式汽轮机,具有较高的效率和安全可靠性。
高中压积木块采用三菱公司成熟的设计;低压积木块以哈汽成熟的600MW机组积木块为母型,与三菱公司一起进行改进设计,使之适应三菱公司的1029mm末级叶片。
1.1.2适用范围本产品适用于中型电网承担基本负荷,更适用于大型电网中的调峰负荷及基本负荷。
本机组寿命在30年以上,该机型适用于北方及南方地区各种冷却水温的条件,在南方夏季水温条件下照常满发600MW。
本机凝汽器可以根据不同的水质及用户的要求采用不同的管材,不仅适用于有淡水水源的内陆地区,也适用于海水冷却的沿海地区。
本机组的年运行小时数在7800小时以上。
1.2技术规范汽轮机型式:超临界、一次中间再热、三缸四排汽、单轴、凝汽式连续出力 600,000KW转速3000rpm旋转方向顺时针(从调端看)主蒸汽压力MPa 24.1Mpa(g)主蒸汽温度℃ 566℃再热蒸汽温度℃ 566℃回热级数8级调节控制系统型式 DEH最大允许系统周波摆动HZ 48.5~51.5空负荷时额定转速波动r/min ±1噪音水平dB(A)<85各轴承处轴径双振幅值mm <0.076通流级数 44 高压部分级数 I+9中压部分级数 6低压部分级数2×2×7末级动叶片长度 mm 1029盘车转速 r/min 3.35汽轮机总长 mm(包括罩壳)~27200汽轮机最大宽度 mm(包括罩壳) 11400汽轮机本体重量 t ~1108汽轮机中心距运行层标高 mm 10701.3主机结构1.3.1蒸汽流程汽轮机通流采用冲动式与反动式组合设计。
新蒸汽从下部进入置于该机两侧两个固定支承的高压主汽调节联合阀,由每侧各两个调节阀流出,经过4根高压导汽管进入高压汽轮机,高压进汽管位于上半两根、下半两根。
深圳频道列表[FM]CH01=08740, 中央三套.音乐之声CH02=08750, 珠海交通音乐频道CH03=08780, 华夏之声CH04=08810, 商业一台CH05=08830, 商业一台CH06=08850, 中国国际台CH07=08860, 商业一台CH08=08900, 增城电台CH09=08930, 中央一套.中国之声CH010=08930,中山音乐台CH011=08950,商业一台CH012=08980,深圳电台.新闻频道CH013=09010,顺德电台(CH014=09030,商业二台)CH015=09040,广东电台台山台CH016=09070,商业二台CH017=09120,商业二台CH018=09140,广东卫星台CH019=09180,广东卫星台CH020=09240,南海电台CH021=09260,香港电台.第一台) CH022=09280,斗门电台CH023=09290,肇庆电台CH024=09320,香港电台.第一台CH025=09340,香港电台.第一台CH026=09360,广东电台.健康频道CH027=09390,广东电台.音乐频道CH028=09460,佛山电台CH029=09510,珠海电台.城市之声CH030=09530,香港电台.第二台CH031=09560,开平电台CH032=09580,中央一套.中国之声CH033=09620,广州电台CH034=09640,香港电台.第二台CH035=09670,中山电台CH036=09710,深圳电台.音乐频道CH037=09740,珠江经济台CH038=09780,香港电台.第四台CH039=09800,澳门电台.葡萄牙语CH040=09830,新会电台CH041=09850,佛山电台CH042=09870,香港电台.第四台CH043=09910,中央一套.中国之声CH044=09930,广东电台.音乐频道CH045=09950,惠阳电台CH046=09970,新城娱乐台CH047=10000,惠州电台CH048=10000,新城娱乐台(香港) CH049=10020,江门电台CH050=10040,新城娱乐台(香港) CH051=10070,澳门电台CH052=10080,东莞电台CH053=10120,中央三套.音乐之声CH054=10170,番禹电台CH055=10220,广东卫星台CH056=10250,新城财经台CH057=10270,广州电台CH058=10300,珠江经济台CH059=10350,汕尾电台CH060=10360,广东电台.城市之声CH061=10380,珠江经济台CH062=10430,宝安电台CH063=10470,新城财经台CH064=10490,华夏之声双语频率CH065=10520,广东电台.羊城交通台CH066=10570,广东电台.南粤之声CH067=10620,深圳电台.交通频率CH068=10660,中央二套.经济之声CH069=10680,香港电台.第五台CH070=10690,东莞电台.音乐频道CH071=10710,中国国际广播电台CH072=10730,博罗电台CH073=10760,广东电台.体育频道CH074=10790,龙华电台。
Chapter1MARKETING CHANNEL CONCEPTSLearning objectives1)Be aware of the growing importance of marketing channels in the larger contentof overall marketing objectives.2)Understand the definition of the marketing channel from a managerial perspective.3)Show how marketing channels relate to the other strategic variables in themarketing mix.4)Understand the flow in and through the marketing channels and how they relate tochannel management.5)Familiarize the concepts of channel structure and the ancillary structure andrecognize their differences.Chapter Topics1)Growing Importance of Marketing Channels2)The Marketing Channel Defined3)Use of the term Channel Manager4)Marketing Channels and Marketing Management Strategy5)Channel Strategy versus Logistics Management6)Flows in Marketing Channels7)Distribution through Intermediaries8)Channel Structure9)Ancillary StructureGrowing Importance of Marketing ChannelsA) Explosion of Information Technology and E-CommerceThe explosion of information technology and E-commerce in recent years has focused attention to “channel” as a means for sustainable competitive advantage. Marketing channel strategy and management must now deal with E-commerce technology as an integral part of marketing channels and distribution systems.The reasons for this attention to channel, as a means of differentiation is a function of:a)Explosion of information technology and E-commerceb)Greater difficulty of gaining a sustainable competitive advantagec)Growing power of distributors, especially retailers in marketing channelsd)The need to reduce distribution costsKey Terms and DefinitionsMarketing Channel Concepts▪Disintermediation: Shorthand for a metamorphosis that would allow hundreds of thousands of producers to be connected directly with millions of consumers without the help of middlemen. This phenomenon did not occur as predicted.▪Reintermediation: Occurred as new types of middlemen called infomediaries such as eBay and Yahoo! emerged to connect producers to consumers.B) Difficulty in Gaining Sustainable Competitive AdvantageCompanies struggle to find a sustainable competitive advantage that cannot be easily or quickly copied by competitors. In recent years, the finding of such an advantage is far more difficult using pricing, product, or promotion strategies.Place or marketing channel strategy, does offer greater potential for a competitive advantage because it is more difficult for competitors to copy.Key Terms and Definitions▪Sustainable competitive advantage: A competitive edge that cannot be quickly or easily copied by competitors.▪Product strategy: Whereby a company creates or modifies a product offering for new or current markets through the use of product innovation, augmentation or lineextensions. Rapid technology transfer and global competition has made parity in product designs, features, and quality easier for competitors to copy thus reducing a firm‟s competitive advantage through product.▪Pricing strategy: Gaining a competitive advantage through pricing strategies is even less feasible than through product development. Pricing strategy is defined as using price as an element in the marketing strategy to gain or hold market share.▪Promotion: The integration of personal selling, advertising, public relations, price discounts, and trade allowances designed to entice the consumer to purchase. The sheer amount of advertising messages to which consumers are exposed to on a daily basis dramatically reduces the time limit promotion provides a firm a competitive advantage.▪Place: The where and how the product or service is delivered to the consumer, the fourth element in the marketing mix, does offer greater potential for a sustainable competitive advantage.C) Growing Power of DistributorsEconomic power has shifted from the producers of goods to the distributors of goods. These distributors now form and play a role as “gatekeepers” for the consumers acting as buying agents and selecting what products the consumer “sees”. Examples include: Home Depot, Toys …R‟ Us, and other “category killers”.Marketing Channels 7e D) Need to Reduce Distribution CostsDistribution costs for many manufacturing firms often meet or exceed the costs of manufacturing or raw materials. In order to reduce these costs manufacturers must begin the process of focusing attention on marketing channel structure more than they have in the past. (See Table 1.1).The Marketing Channel DefinedThe definition of “marketing channel” is based upon one‟s perspective– that of a consumer versus that of a manufacturer.From the perspective of a marketing manager, the marketing channel is viewed and defined as: “the external contactual organization that management operates to achieve its distribution objectives”.Key Terms and Definitions▪External: Marketing channel exists outside of the firm. Firms must use interorganizational management rather than intraorganizational management.▪Contactual organization: Refers to those firms or parties who are involved in the negotiatory functions. Negotiatory functions include: buying, selling, or transferring title from one firm to another.▪Operates: Involvement by management in the affairs of the channel.▪Distribution objectives: Management has certain distribution goals in mind such as distribution to particular retail stores of key products at or near key times.Use of the term Channel ManagerFew firms actually use this term in their job title descriptions. Figure 1.1 illustrates some of the titles used by selected U.S. firms that involve people in channel management. In fact, many different executives are involved in making channel decisions. In large consumer products companies, the people involved can include the V.P. of Marketing, general marketing manager, product or brand managers, sales managers, or regional sales manager. For industrial products, it might be the V.P. of Sales and V.P. of Marketing. For small business or franchisees, it might be the V.P. of Franchising or small business owner.Marketing Channel ConceptsKey Term and Definition▪Channel Manager: Provides a sense of focus for referring to the important role of channel decision-making within the firm. Anyone in the firm who is making channel decisions is, while involved in that activity, a channel manager.Marketing Channels and Marketing Management StrategyThe marketing mix model portra ys the marketing management process as a “strategic blending” of the four controllable marketing variables (product, price, promotion, and place). External uncontrollable elements include the economy, technology, government, sociocultural patterns of buyer behavior and competition.Channel strategy fits under “place” in the marketing management strategy and managers must operate their marketing channels in such a way as to support and enhance the other strategic variables in the marketing mix.Strategic alliances or partnerships have specific advantages:▪Long-term viability▪Cannot be copied quickly▪Cannot be duplicated with price▪Cannot be substituted with a clever idea or short-term promotional program(s) Channel Strategy versus Logistics ManagementChannel strategy and logistics management comprise the distribution variable of the marketing mix.Channel strategy is concerned with the entire process of setting up and operating the contactual organizations that are responsible for meeting the firm‟s distribution objectives.Logistics management more narrowly focuses on providing product availability at the appropriate place and time in the marketing channel.Channel strategy must first be established before logistics management should be considered. Logistic management is a subsidiary of channel management.Flows in Marketing Channels1.Product flow2.Negotiation flow3.Ownership flowrmation flow5.Promotion flowMarketing Channels 7e 1.Product flow is the actual physical movement of the product from the manufacturerthrough all of the parties to the consumer.2.Negotiation flow represents the interplay of the buying and selling functionsassociated with the transfer of title or rights of ownership. Negotiation is a two-way process involving mutual exchange between buyer and seller.3.Ownership flow is the movement of the title of the product from one stage in theprocess to another.rmation flow involves two directions – from the manufacturer to the consumerand from the consumer to the manufacturer. This flow includes transportation as information deemed necessary for the actual delivery of the product is communicated to the transportation agents.5.Promotion flow refers to the flow of persuasive communication in the form ofadvertising, personal selling, sales promotion and publicity. This flow adds theadvertising agency as an element of promotion.Distribution through IntermediariesEconomic considerations are very important in determining what form intermediaries will have in their appearance in marketing channels. Two important concepts are introduced: specialization and division of labor and contactual efficiency.▪Specialization and Division of LaborWhen applied to distribution, the concept is that of breaking down complex tasks into smaller, less complex ones and allocating them to parties who are specialists atperforming them at greater efficiencies.▪Contactual EfficiencyFrom a channel manager‟s viewpoint, contactual efficiency is the level of negotiation effort between sellers and buyers relative to achieving a distribution objective. Channel StructureKey Term and Definition▪Channel structure: The group of channel members to which a set of distribution tasks has been allocated.The channel manager is faced with allocation decisions, how to allocate or structure the task of distribution.Multi-channel strategy is when the firm has chosen to reach its target consumer through more than one channel. With the advent of E-commerce, many firms have opted to use multi-channel strategies to reach their target market.Marketing Channel ConceptsAncillary StructureThere are others that are not members of the channel structure that assist in the process. These other members will be defined as ancillary structure.Key Term and DefinitionAncillary structure: The group of institutions (facilitating agents) that assist channel members in performing distribution tasks.These ancillary members provide services to the channel members after the basic channel decisions have already been made.Examples of ancillary members include: banks, insurance agents, storage agents, contractors, repair shops, etc.Channel management must also deal with these ancillary members who do not have as great a stake in the channel as channel members but who are nevertheless key components in ensuring that the product is available to the consumer.。