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Meteorology
A database of terms pertaining to the scientific study of the atmosphere.
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衰減
Weather; Meteorology
1.(Also called extinction, especially in reference to optical frequencies.) 一般使用術語,表示在從一個點傳輸到另一種信號強度下降。為電磁波通過介質的傳播,衰減由吸收和散射引起的。音量衰減係數 (m−1) 這種媒介的是光輝的分數減少每股光程長。在雷達用法中,特定的衰減是功率密度每股光程長的分數減少平面波輻射傳播通過一種媒介, ...