短語(yǔ)詞組短語(yǔ)compound closed kinematic chain 多連鏈simple closed kinematic chain 單回路運(yùn)動(dòng)煉virtual closed kinematic chain 虛擬封閉運(yùn)動(dòng)鏈simple -closed kinematic chain 單連鏈 返回 closed kinematic chain