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1.The amount of light emitted by one candle that falls on one square foot of surface one foot away is called a lumen (lm).
光的量是由一支蜡?由一英?盏木嗬胝赵谝黄椒接?盏牡胤阶鑫?屏康ノ唬毫髅鳌收藏指正
2.a unit of illumination equal to 1 lumen per square meter; 0.0929 foot candle.
照明单位等于每平方米流明；（待查表）英尺烛光。收藏指正
3.a unit of illuminance on a surface that is everywhere 1 foot from a point source of 1 candle.
一支蜡烛的点光源在每英尺表面的照度的单位。收藏指正
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