n.平衡物；平衡力；砝码
It's useless, the counterweight won't go any lower. 这没用，平衡物不会降低。
The counterweight and the chariot seem to weigh the same. 平衡物和战车似乎一样重。
A counterweight balances the rotation. 有一个砝码平衡回转。
平衡重
