dropping-weight compactor

• 落锤式压实机

dropping-weight compactor的用法和样例：

例句

1. It needs more traction force and the traction force which needs also changes bigger specially for Pentagon Impact Compactor.
   特别是五边形冲击压实机所需牵引力很大，且所需牵引力的变化幅度也很大，牵引车合适与否直接影响到产品设计目的的能否实现。