平衡重back balance;balance weight;counterweight详细»
平衡重balance weight;counterweight详细»
平衡重〔名词〕counter poise,counterpoise详细»
平衡重balance weight;counter weight详细»
平衡重balance weight;bob weight;bobweight;brake counterweight;bullfrog;conuter weight;counter poise;counter scale;kentledge详细»
平衡重back balance;balance weight;balanced weight;balancing weight;counterpoise;kentledge;mass balance详细»