开式循环节流制冷器 open cycle throttling refrigerator

闭环节制 closed loop ; closed loop control

控制环节 controlling unit ; [自] control element

关键控制环节 Critical Control Segment

开环节制体系 open-loop control system

闭合循环节流制冷器 [制冷] closed cycle throttling refrigerator

法制环节 the legal system tache

天线控制环节 ACS

无线电控制环节 radio control link