- counterweight catch
- 平衡: balance; equilibrium
- 重: weight
- 锁: lock
- 平衡重: balance box; balance weight; balanced weight; balancer weight; balancing weight; bobweight; brake counterweight; bullfrog; counter poise; counter scale; counter weight; counterpoise; damper weight; donkey; equipoise; kentledge; tension weight; weight counterbalance; weight for counterbalance
- 不平衡重量: weight; unbalanced
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