optical flux的用法和樣例：
例句
- Another attribute is the flux or radiant power that can be delivered in that narrow frequency band.
另一個(gè)性質(zhì)就是在這樣窄的頻帶內可以給出很高的光通量或輻射功率。 - Device in which the phenomenon of reflection is used to alter the spatial distribution of the luminous flux from a source.
利用反射現象來(lái)改變光源光通量的空間分布的裝置。
