downward radiation 中文意思是什麼
downward radiation
解釋
向下全輻射-
An atom on an excited upper level can execute a downward transition not just spontaneously but also when photons of the radiation field surrounding the atomic interact with it.
處在較高的激發態上的原子不只可以自發地而且可以在它與原子系統周圍輻射場的光子相互作用時發生向下的躍遷。 -
In cloudy skies the downward emission of the atmosphere is augmented by radiation from the clouds themselves.
對于多天天空,大氣的向下發射被來自雲本身的發射所加強。
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