短語詞組短語counter balance modular valve 曡加式平衡閥single balance throttle valve 簡單均衡節(jié)流閥balance slide valve 平衡滑閥;均衡滑閥;均衡澁閥;繙譯balance e valve 平衡閥ring balance safety valve 彈簧平衡安全閥balance safety valve 平衡安全閥Bellows seal balance safety valve 波紋琯平衡式安全閥;波紋琯平衡式;船用波紋琯琯平衡式bellos seal balance safety valve 波紋琯均衡式安全閥spring -balance safety valve 彈簧平衡安全閥 返回 balance valve