downshift 中文意思是什麼
downshift
解釋
（使）工作降格-
As a result, the low - frequency contents increase as the centroid of signal spectrum experiences a downshift, in case that frequency is independent on quality factor, the offset of the centroid frequency is proportional to the integral of attenuation factor along wavepath, thus can he used to reconstruct the attenuation distribution
假設介質的品質因子與頻率無關，地震波主頻的偏移量與吸收系數對傳播路徑的積分成比例，則通過它們之間的關系可以估測介質的吸收系數。 -
In practice, all short - range radio systems “ downshift ” their speeds to compensate for long distances, walls, people and other obstacles
實際上，所有的短距無線電系統為了補償距離、墻壁、人員和其他阻礙，速度都會下降。
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