1) span switch
跨距倒换
2) span
[英][spæn] [美][spæn]
跨距
1.
Arch pipe is a long-span structure made with bending and welding steel tube which is characterized by no requirement of the arch hinges.
从分析计算表明,跨距在30~90米之间,应优先采用拱管跨越方式。
2.
When the customer as well as the manufacturers selects the ADSS types, besides considering the fiber numbers of ADSS, sometimes they define ADSS type based on span.
目前,无论是用户还是生产厂家,在ADSS光缆选型时,除了提出光缆的光纤芯数之外,往往以“跨距”来定义ADSS光缆。
3.
The influences of span on the motion stability of chains were discussed, and the relationship among chain sags, chain lengthes and chain numbers was studied, and the reasons for tooth-leap were analyzed, and a new-style device preventing tooth-leap was provided.
对垃圾集装箱装卸机构进行了创新设计和开发,提出了垃圾集装箱链条式装卸机构,分析了链传动跨距对机构稳定性的影响,研究了铅垂布置的链传动垂度、链条伸长量和链节数之间的相互关系,分析了跳齿现象发生的原因,提出了一种新型防跳齿装置。
3) span
[英][spæn] [美][spæn]
跨距;跨度
4) switch
[英][swɪtʃ] [美][swɪtʃ]
倒换
1.
Research and realized on a system of optical network physics layer monitor and switch;
光网络物理层监测倒换系统的研究与实现
2.
Based on the fundamental principles of SDH bi-directional multiplex section protection ring on 2-fiber,variation of information time-delay for bi-directional multiplex section protection ring switching is deduced and calculated in this article.
在同步数字传输(synchronous digital hierarchy,SDH)二纤双向复用段保护环工作机理的基础上,对保护环倒换导致信息传输时延产生的变化进行推导计算,根据靶场实际应用得出估算公式,对其影响进行了分析并提出相应对策。
5) Switching
[英][switʃ] [美][swɪtʃ]
倒换
1.
This paper presents a common SDH synchronous network synchronization methods, equipment stresses the clock against the common tracking mode, the clock through the automatic protection switching features to increase the reliability of network synchronization, and in accordance with a detailed analysis of the actual case the clock Protection Switching the basic tenets.
本文主要介绍了SDH同步网的常用同步方式,针对设备讲了时钟的常见跟踪方式,通过时钟的自动保护倒换功能来增加同步网的可靠性,并根据实际案例详细分析时钟保护倒换的基本原理。
6) span
[英][spæn] [美][spæn]
n.跨度,跨距
补充资料：倒换
1.掉换。 2.轮流替换。
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条