A weight that acts to balance another; a counterpoise or counterweight.
A weight that acts to balance another; a counterpoise or counterweight.
衡重体能与另一个平衡的重量；衡重体或平衡锤
A weight that acts to balance another; a counterpoise or counterweight.
衡重体能与另一个平衡的重量；衡重体或平衡锤