pleiston

例句：

1. 1. The engineer used a pleiston to support the heavy load.
   工程师用一个铅管支撑沉重的负荷。
2. 2.The construction crew had to move the pleiston to avoid hitting the cable.
   施工队不得不移动铅管，以免撞到电缆。
3. 3.The pleiston was made of solid lead and had to be handled carefully.
   这个铅管是用实心的铅制成的，需要小心处理。