电子信息类专业英语

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---------------UNIT 15-------------------- reservation 保留,预定 graphics 图示,图解 inventory 清单,报表 teleprocessing 远程(信息)处理,遥控处理 constrain 约束,强迫 multi-access 多路存取,多路进入 feedback 反馈,回授 intelligence 智能,智力,信息 intermediate 中间的 elapse (时间)经过,消失 be called upon to 用来…,(被)要求… with the aid of 借助于,用,通过 appear as 作为…出现 be likely to 可能,大约,像要 [1] The combination of computers and data communication places such new requirements on the systems, which must handle them, that one can refer to them better as teleprocessing rather than telecommunications. 计算机和数据通信的结合向系统提出必须对这些信息进行处理的新要求,以至人们最好称它们为远程信息处理,而不是远程通信。 [2] Several different types of computer peripherals may appear as network terminals, and so also can computers functioning in several different ways. 几种不同的计算机外围设备可能作为网络终端出现,几种不同方式运行的计算机也可能作为网络终端出现。 [3] The access times for typical computers in use at this time are about 100 ms, but this will become faster as better memories are utilized. 目前所用的典型计算机存取时间大约为100毫秒,但当采用较好的存储器时,存取时间将会缩短。 ---------------UNIT 16-------------------- adopt 正式通过 ,采纳 pedestrian 行人,步行者 deploy 部署 scenarios 情景,场景 symmetric 相称性,均衡的 asymmetric 不均匀的,不对称的 compatible 能相容的,能兼容的 traffic 话务量 uplink 上行链路 downlink 下行链路 throughput 吞吐量 harmonization 一致,融洽 macro 宏观 micro 微观 signaling 信令 protocol 协议 (1)Designed as an advanced TDMA/TDD system with an adaptive CDMA component operating in synchronous mode, TD-SCDMA masters both symmetric circuit switched services(such as speech or video)as well as asymmetric packet switched services(such as mobile Internet access).作为一种以同步模式运行的结合CDMA自适应技术的高级TDMA/TDD系统,TD-SCDMA具有对称电路交换服务业务(如语音和视频)和非对称分组交换服务业务(如手机上网)。 (2)The main benefits of TD-SCDMA are that it can be implemented less expensively than comparable 3G systems since it is much more spectrum efficient and is compatible with GSM network elements ,allows 3G services without installation of completely new infrastructure. TD-SCDMA的主要优势在于它的运营费用比其他3G系统低,因为它的频谱利用率较高而且与GSM网络组建兼容,使得3G业务在GSM系统中能够实现而不需要安装新的基础设 施。 (3)On the contrary, TD-SCDMA adapts the uplink/downlink ratio according to the data load within a single unpaired frequency thus utilizing the spectrum more efficiently, an provides data rates ranging from 1.2kbps to 2Mbps. 相反,TD-SCDMA数据负荷在单一而非成对的载频内调整上下行的(时隙)比率,因此能够更有效地利用频谱,并提供从1.2kbps到2Mbps的数据传输速率。 (4)As already stated ,with asymmetric traffic applications, TD-SCDMA utilizes the available spectrum more efficiently than other 3G standards since it employs only one band for both uplink and downlink traffic ( TDD unpaired band)instead of two separate bands for uplink and downlink (FFD paired bands).如前所述,在非对称通信量应用中,TD-SCDMA利用可用频谱的效率比其他3G标准高,因为它在只利用一个频带(TDD单一频带)而不是两个独立的频带(FDD成对频带)进行上行及下行通信。 (5)The high directivity and sensibility of smart antenna together with the fact that terminals transmit power only during active timeslots contributes to keep the terminal’s power consumption low ,which leads to more cost effective handsets. 智能天线的高方向性和灵敏度连同终端只有在激活的时间内才能发射功率这一事实有助于保持终端的低功耗,这带来更多具有成本效益的手持设备。 (6)Both TD-SCDMA deployments-TSM and TDDLCR-offer the same performances in terms of data rate, spectrum efficiency, coverage, mobility and reliability and basically can be introduced by all operators having TDD unpaired bands awarded. TD-SCDMA的两种部署-SM和TDDCLR的数据速率,频谱利用率,覆盖率,移动性和可靠性等性能是一样的,并基本上为所有取得非成对TDD频段牌照的运营商所采用。 ---------------UNIT 17-------------------- pixel (显示器或电视机图像的)像素;像素 shade 颜色深浅;渐变 histogram 直方图 reassign 再分配;再委派;在指定 time-lapsed (时间上)相继的 arithmetic 算术,算法 warping 翘面,扭曲,变形 morph 变种,变体 dilation 膨胀,扩张,扩大 erosion 腐蚀,侵蚀 blur 涂污,污损;污点 kernel 核心,要点,精髓,内核 edge filter 边缘滤波器 perimeter 周长,周界 facsimile 摹写,传真,精确复制,影印 rows and columns 图像的行和列 gray scale image 灰度图像 gray scale level 灰度级 image contrast 图像对比度 histogram equalization 直方图均衡化 resultant matrix 结果矩阵 edge detection 边缘检测 object recognition 目标识别 magnitude spectrum 幅度谱 phase spectrum 相位谱 run-length encoding 行程编码 Huffman encoding 哈夫曼编码 DCT(Discrete Cosine Transform) 离散余弦变换 [1]When an image uses only a small portion of the available gray scale levels ,histogram equalization can be used to spread out the usage of gray scale levels over the entire available range.当一幅图像只使用了可用灰