1)  contrast
异同对比
2)  E-C comparison
英汉异同对比
3)  similarities and differences
异同
1.
Elementary discussion on similarities and differences of reservoir area inhabitant resettlement planning between China and Laos;
浅谈老挝水库移民安置规划与国内的异同
2.
Study on the Similarities and Differences of Milk Industrial Architecture in China and Foreign Countries;
中外乳品工业建筑的异同
3.
Similarities and Differences between Newton Integral and Riemann Integral;
牛顿积分与黎曼积分之异同
4)  Difference
异同
1.
The difference about reinforcement for opening in vessels between GB150 and ASME code were mainly introduced.
本文介绍了GB150与ASME规范关于开孔补强的异同,并就其中的一些问题进行了探讨。
2.
The article, based on studies on taboos generalities and the background in which they arise, as well as their cultural differences between China and the West, aims at familiarizing English learners with cross - culture background, developing their cross - cultural awareness, and avoiding pragmatic failures in their communication in English.
通过探讨英汉禁忌语产生的历史背景、共性以及它们在中西方文化中的异同,让英语学习者了解和掌握跨文化背景的一些知识,培养跨文化意识,避免在英语交际中犯语用错误。
3.
This paper will analyze the difference between PE teaching and physical training on the basis of targets, ideas, organization, contents and methods, in order to find out their respective characteristics and the common points, which could be used as the reference for the reform of PE teaching and physical training.
对体育教学与运动训练的异同从目标、思想、组织、内容、方法五个方面进行分析 ,旨在更全面、更系统地了解两者各自的特点及其共同之处 ,从而为体育教学改革和运动训练改革提供参考依据。
5)  difference and similarity
异同
1.
Analysis of the reasons for difference and similarity of the poems between Lu You and Fan Chengda in Chongqing;
陆游、范成大巴渝诗异同之原因探析
2.
A new explanation on the difference and similarity in the ethical cultures between the ancient East and West;
古代中西伦理文化异同新论
3.
It was analyzed that the difference and similarity of quality administrative function between goveronments and enterprises.
阐述质量管理的两个主体政府与企业在职能上的异同并进行分析 ,提出政府与企业质量管理职能的结合 ,才能收到最佳的效
6)  differences and similarities
异同
1.
The Ongoing Changes,Differences and Similarities of Women s Education and Family Status after the World War Ⅱ between China,Korea and Japan;
中、韩、日三国女性战后教育、家庭地位变化及其异同
2.
The Differences and Similarities of Women s Social Status in Ancient Times Between China,Korea and Japan;
中、韩、日三国古代女性社会地位的表现及其异同
3.
The Differences and Similarities Between Production Cost Method and the Traditional Methods for Cost Calculation;
作业成本法与传统成本计算方法的异同
参考词条
补充资料:PLC与DCS的异同

PLC


   (1)从开关量控制发展到顺序控制、运送处理,是从下往上的。
   (2)连续PID控制等多功能,PID在中断站中。
   (3)可用一台PC机为主站,多台同型PLC为从站。
   (4)也可一台PLC为主站,多台同型PLC为从站,构成PLC网络。这比用PC机作主站方便之处是:有用户编程时,不必知道通信协议,只要按说明书格式写就行。
   (5)PLC网格既可作为独立DCS,也可作为DCS的子系统。
   (6)大系统同DCS。
   (7)PLC主要用于工业过程中的顺序控制,新型PLC也兼有闭环控制功能。



  
   DCS



   (1)分散控制系统DCS集4C(Communication,Computer, Control、CRT)技术于一身的监控技术。
   (2)从上到下的树状拓扑大系统,其中通信(Communication)是关键。
   (3)PID在中断站中,中断站联接计算机与现场仪器仪表与控制装置。
   (4)是树状拓扑和并行连续的链路结构,也有大量电缆从中继站并行到现场仪器仪表。
   (5)模拟信号,A/D—D/A、带微处理器的混合。
   (6)一台仪表一对线接到I/O,由控制站挂到局域网LAN。
   (7)DCS是控制(工程师站)、操作(操作员站)、现场仪表(现场测控站)的3级结构。
   (8)用于大规模的连续过程控制,如石化等

说明:补充资料仅用于学习参考,请勿用于其它任何用途。