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
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