sink rate meaning in English

下降率

You slow down to minimum your sink rate
你减速以达到最小的下降率。
Suddenly you feel your sink rate increase and the canopy spins to the right
突然地你感觉下降率增加且这伞向右旋转。
Polar curve - a graph showing the performance of a wing based on it ' s airspeed and sink rate
滑降比特性曲线用图表显示飞行伞飞行对空速度及沈降率基本特性。
Stricklin was starting off in the hole , in what ejection - seat experts dispassionately call an " out - of - envelope situation with low survivability . " his plane was still falling fast , even after he managed to decrease the sink rate
可斯特里克林开始弹射的那个时刻，已经到了被弹射专家判定为“超出操控范围的程度，生还机会极微”的节骨眼上。