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for subject
Lighting
other than cinema
containing
时
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使人一
时
失明的眩光
disability glare
光通量才是衡量灯泡亮度的真正标准,也是我们买 LED 灯
时
需要关注的数字
The lumen is the real measurement of brightness of a light bulb, and is the number you should look for when shopping for LEDs
因大多数犯罪发生在夜间,景观照明灯可同
时
担任起安全照明的作用
As most crimes occur at night, the landscape lights can do double duty as security lighting
市面上现有一种无极汞灯,可以瞬
时
开关
Now there is a kind of electrodeless mercury lamp which can be instantaneously switch on and off
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