maintained emergency lighting

The importance of emergency illumination is demonstrated.

论述了应急照明的重要性，同时也介绍了应急照明灯具以及电源的技术和安全要求。

Discussion on the Choice of Power Supply for Emergency Lighting;

浅谈应急照明电源的选择

Discussion on Issues in Fire Emergency Lighting System;

消防应急照明系统中有关问题探讨

non-maintained emergency lighting

非常开应急照明装置

If there are not two independent sources of electricity for lighting, additional lighting should be provided by properly constructed lamps or lighting apparatus for emergency use.

如果没有两个独立的照明电源，应通过适当建造的灯具或照明装置提供应急使用的附加照明。

Setting and use of the high-level in hospital sickroom's emergency lighting system

高层住院病房应急照明的设置与使用

When you turn a switch, you can easily operate lighting, heating or power-driven electrical devices.

旋动开关，就业能轻而易举地启动照明装置、供热装置和电动装置。

In the event of a power failure the emergency lighting comes on automatically.

万一停电，应急照明设备会自动开启。

emergency tripping device

应急跳闸装置应急脱扣装置

Light Set Control Switch Circuit Design and Making

照明装置多地控制开关电路的设计与制作

cross-hair illuminating attachment

【测】十字丝照明装置

emergency panel lights switch

仪表板应急照明电门

Development of Tow Stage Quench Waste Heat Boilers in Ethylene Plants and Its Application

乙烯装置二级急冷废热锅炉的开发与应用

ergency separation system

特种武器应急投放装置

emergency bilge pumping device

应急舱底水泵唧装置

emergency set

救急用电台，备用台，备用[应急]装置

lighting fitting parts of non-electric of base metal

非电器照明装置配件,贱金属制

vandal-resistant light fittings

不易被人破坏的照明装置

an optical device for viewing photographic transparencies.

检查照相透明度的光学装置。

holder for batteries (bicycle lighting equipment)

蓄电池盒（脚踏车照明装置）

High Uniform Violet Ray Illumination Experimental Device and Its Structure Design

紫光高均匀照明实验装置及结构设计