密闭式冷却系统 coolant recovery system

闭式冷却系统 closed cooling system ; closed cycle cooling system

半封闭式冷却系统 semi-closed cooling system

封闭式冷却系统 emclosed cooling system

闭式冷却水系统 closed cooling water system

密闭式循环冷却水系统 closed recirculation cooling water system

闭式冷却塔系统 closed cooling tower system

闭式循环冷却水系统 closed cycle cooling water system

闭式空气循环冷却系统 closed air cycle cooling system

封闭式循环水冷却系统 full-closed de-ion water-cooling