“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.

youdao

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.

youdao

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.

youdao