pendulum bob

英 美
  • 摆锤
  • bob v.上下疾动;剪短;行屈膝礼;欺骗;窃取n.上下快速摆动;短发,波波头;钟摆;浮子;屈膝礼;一束;先令;大雪橇;鲍勃(人名)
  • pendulum n.摆锤;钟摆;摇摆不定
    1. 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。
    2. 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。