rate of descend的用法和樣例：
例句
- Suddenly you feel your sink rate increase and the canopy spins to the right.
突然地你感覺下降率增加且這傘向右旋轉。 - A new method based on the frequency decrease rate for fast identification of site liquefaction from surface acceleration records was presented.
摘要提出了一個以頻率下降率為基本指標的依據強震記錄快速識別場地液化的新方法。
