... 转速控制范围，变速范围：range of speed control 转速降落率，相对转速降低，相对转速降落：relative speed drop 转速降低，停止旋转，反转，消自旋：despin ...
双语例句
1
But the satellites will arrive with less relativespeed than spacecraft making the trip in three days, which means less fuel will be needed to brake and drop into lunar orbit.