counterweight
特殊用法adjustable counterweight1.■可调平衡锤bell counterweight1.■料钟平衡锤compensating counterweight1.■平衡锤interlocking frame counterweight1.■联锁机平衡锤[重锤]jack shaft counterweight1.■曲柄轴平衡块semaphore counterweight1.■臂板平衡锤[重锤]spindle counterweight1.■接轴平衡锤tail lever counterweight1.■尾杆平衡锤