back-up的例句大全

Study of back-up protection configuration schemes in power market environment

市场环境下后备保护配置方法的选择

Over current protection and negative sequence current protection are adopted to realize remote back-up protection.

为实现远后备保护功能，应配置过电流保护和负序电流保护。

Construction and Study on Power Data Back-up System

电力数据备份系统的建设与研究

Imagine of Realization of Remote Back-up Protection in Main Network above 220 kV

关于220kV及以上主网远后备保护的思考

Favourable social and technical environment and social back-up system are the social basis for the normal development of productive forces of modern society.

良好的社会技术环境和社会支持体系，是现代生产力正常发展的社会基础。

Discussion on Improving Adaptability of Back-Up Protection of 110 kV Transmission Line

提高110kV线路后备保护适应能力的探讨

A Coordination Working Scheme of Back-up Protection and Automatic Safety Device

一种后备保护与安全自动装置协调工作的方案

If system breakdowns or failures would result in the permanent loss of records, a back-up system should be provided.

如果计算机的故障或失效会导致记录的永久丢失，则应当提供备份系统。

The method of economic evaluation about action results of different back-up protection configuration schemes is given.

文中给出了后备保护不同配置方式下动作后果的经济性评估方法；

Back-up protection units for relay protection failure in digital substation

数字化变电站继电保护装置失效后备措施研究

Finite Element Analysis of Stress and Contact Pressure of Rubber O-sealing Ring with Back-up Ring

O形橡胶密封圈配合挡圈密封的应力与接触压力有限元分析

BlackBerry users cursed their devices, which stopped working because of problems at servers for which a back-up system failed to work.

黑莓用户最近对其运营商骂声不断，这主要是因为手机服务器的备份系统不工作而使手机无法正常工作。

Study on DC line remote back-up protection in HVAC/ DC system

高压交直流混合输电直流线路远后备保护研究

Disassemble back-up ring and mount only in the case of replacement.

仅在更换时分解支撑环和底座。

To establish a safe back-up system of double service unit for hospital

建设安全可靠的医院双服务器备份系统

Join in correct position with back-up ring no.5.

将支撑环连接到正确的位置上。

He said he was lucky the airport had a back-up system of its own generators& otherwise he would have to try to land in total darkness.

他说，幸运的是，机场自己有后备的发电设备。否则，他得设法在黑暗里降落。

The paper introduces the new processing and technique such as embedded back-up plate, wholly craning and installing the guide pulley, etc. which are used to install hoist, which can not only improve installing quality and simplify installing procedure, but also can raise the working efficiency.

介绍了提升机安装中采用预埋垫板、导向轮整体吊装等新工艺、新技术，不但提高了安装质量，简化了安装工序，而且还提高了施工效率。

Discussion about choice of the methods of closing circuit line in the 110 kV automatic back-up power supply device

浅谈110kV备自投合闸回路的接线方式选择

Improvement of Operating Technology of Bearings for Back-up Rolls on Medium Plate Mill

中板轧机支承辊轴承使用技术的改进