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- emergency lighting element 紧急照明元件
- SHENZHEN HOCEN EMERGENCY LIGHTING CO., LTD. 深圳市恒生照明有限公司。
- Offer of emergency light STOCK I.D. 供应库存应急灯。
- 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。
- The hydrogen is the known the lightest element. 氢是已知的最轻的元素。
- Emergency lights at every stairwell. 每层楼梯间应安装应急灯。
- Fire Emergency lighting is crucial in evacuating when a fire happens. 消防应急照明是人员在突发事故情况下安全疏散的重要保证。
- Hydrogen is the lightest element. 氢是最轻的元素。
- Fire doors, emergency lighting and signage are provided at corridors. 走廊安装钢质/玻璃防火门，应急照明和出口标示。
- The lightest element is hydrogen . 275最轻的元素是氢。
- Hydrogen is the lightest element . 氢是最轻的元素。
- The lightest element is hydrogen. 最轻的元素是氢。
- Emergent light is no longer continuous. 透过的光不再是连续的。
- With neutrons, the light element is not usually at any marked disadvantage. 对于中子，轻元素通常不是一个突出的问题。
- That part of emergency lighting that enables normal activities to continue substantially unchanged. 使正常活动得以基本不变的继续进行的应急照明部分。
- That part of emergency lighting provided to ensure the safety of people involved in a potentially hazardous process. 用以确保处于潜在危险过程中的人们的安全而提供的那部分应急照明。
- Hydrogen is the lightest element with an atomic weight of 1.008. 氢是最轻的元素，原子量为1.;008。（介词省译）
- Wish Huida's emergency lighting bring the more sunshine and galliardise to your firm. 愿辉达应急灯给您带来更多的光明和欢乐。
- Hydrogen, which is the lightest element, has only one electron. 最轻的元素氢只有一个电子。
- Adequate emergency lighting(with a battery back-up) should be installed throughout the factory. 整个工厂需安装有足够的紧急照明系统(带有备用电池)。
