closed die封闭模,闭合模,模锻模,闭式冲模closedadj.关闭的；封闭的；停业的动词close的过去式和过去分词.closed circuit crushing闭路破碎closed chest compression胸外按压Closed-loop of current电流闭环closed rotative gas lift闭环式气举Closed fracture of orbit眶骨闭合性骨折closed feed water heater密封加热器Closed fracture of ilium髂骨闭合性骨折Closed fracture of femur股骨闭合性骨折closed tubes dissolution封闭溶样Closed loop servocontrol闭环伺服控制