downward radiation 中文意思是什麼

downward radiation 解釋
向下全輻射
  • downward : adj. 1. 下方的,向下的,低下的。2. 下降的;下坡的;(市價)下跌的。adv. = downwards. adv. -ly ,-ness n.
  • radiation : n. 1. 發光,射光,放熱,放射,發射。2. 【物理學】輻射;放射物;輻射線[熱、能];照射(作用)。3. 【動、植】輻射形;【測】射出測量法;【醫學】射線療法。
  1. 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。
  2. 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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