pendulum stanchion

例句：

1. 1. Thependulum swings back and forth in the breeze.
   风中摆锤来回摆动。
2. 2. The pendulum is used to measure time.
   摆锤用于测量时间。
3. 3.The pendulum was used as a clock mechanism.
   摆锤被用作时钟机制。