ramn.公羊；撞锤；撞击装置；有撞角的军舰；（水压机的）活塞v.撞击；填塞；强迫通过或接受abbr.随机存取存储器(=random access memory)Ram.n.白羊座Ramiah拉米亚

1. A ramming machine is used to firm the ground up.
   打夯机用来将地面打实。