白天在家里使用蓝光度较高的节能灯是个好主意，在晚上则使用蓝光量可能最低的节能灯。
At home, it is a good idea to use energy-efficient lamps with a higher proportion of blue light during the day, and in the evening use ones with the lowest possible amount of blue light.
“圣灯”光度不高，所以白天很难看见。
"This" luminosity is not high, so it is very difficult to see the day.
球状烛光是所有灯的光度输出的度量标准。
Mean Spherical Candle Power is a measure of total lamp photometric output.
介绍了721型分光光度计，灯电源电路和稳压电路故障现象，分析了故障产生的原因，提供了排除故障办法，对该仪器维修提供了借鉴的经验。
This paper introduced some common faults of 721 spectrophotometer, found out the cause of formation, and presented fixing method, it may be used for instrument maintenance for reference.
马房内外那一串串日本灯笼还没有点上，可是有五、六盏挂在墙上的灯，灯上装着巨大的白铁反光板，已经点亮了，光度很弱。
The festoons of japanese lanterns in and aroud the barn were not yet lighted, but some halfdozen lamps, with great tin reflectors, that hung against the walls were burning low .
另一些相机会关闭闪光灯，快速连拍几张曝光度不一的照片，然后把这些图像合并起来，拼成一张曝光均匀的照片；
Other cameras turn off the flash and take several shots in rapid succession at different exposure levels, and then combine the images to create one evenly exposed shot;
另一些相机会关闭闪光灯，快速连拍几张曝光度不一的照片，然后把这些图像合并起来，拼成一张曝光均匀的照片；
Other cameras turn off the flash and take several shots in rapid succession at different exposure levels, and then combine the images to create one evenly exposed shot;
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