| 释义 |
pendulum bob
基本例句
摆锤
The hydrometric pendulum is sometimes used to determine flow velocities in open channels.测流速的摆锤有时用于确定明渠中的流速。
Huygens saw that a pendulum traversing a circular arc completed small oscillations faster than large ones.惠更斯观察到，若摆锤沿著圆弧摆荡，那麽摆动幅度小的时候会比幅度大时振荡得快。 |