在一个通道开路，另一个通道闭路时进行测量。
The measurement is made with one channel open and one channel closed.
但周一时，此前被禁止踏入法院的记者获准来到法院七层的一间屋子，通过闭路电视收看宣判的情景。
But on Monday, journalists previously barred from the court property were permitted to watch the final proceedings by closed-circuit television from a courtroom annex.
另外，24小时保安服务、闭路电视监控、精密警报及出入管理控制系统均有效确保高度严密的保安。
In addition, the 24-hour security service, CCTV monitoring, alarm and access control precision control systems are effective in ensuring a high degree of tight security.
蒸汽引擎被设计成闭路循环系统。当从气缸中排出的水蒸汽经过蒸汽阀门时，这样的系统可以将它们截留，然后送进压缩包里冷却。
The steam engine is designed to be a "closed-loop" system, in which water escaping from the cylinders through the exhaust valves is captured and cooled in a condensing unit.
酒吧和餐厅内国际直播电话；闭路电视及迷你冰箱一应俱全。24小时的客房服务为您提供整洁舒适的休息环境。
IDD phones in bars and restaurants; closed-circuit television and mini bar. 24-hour room service provides you with comfortable and neat environment for rest.
年底时，港岛区有308个路口由区域交通控制系统控制，并有40部闭路电视摄影机，用以监察交通情况。
By the end of 1997, 308 signalised junctions on Hong Kong Island were under the ATC system and 40 closed circuit television (CCTV) cameras were in use for traffic surveillance.
公司就降低水泥闭路循环系统阻力，为业主提高台时产量，提高水泥品质，节约水泥综合吨耗电。
The company is committed to reduce the resistance of the circulatory system for the user to increase the quantity and improve quality, to save tons of cement and the final power consumption.
公司就降低水泥闭路循环系统阻力，为业主提高台时产量，提高水泥品质，节约水泥综合吨耗电。
The company is committed to reduce the resistance of the circulatory system for the user to increase the quantity and improve quality, to save tons of cement and the final power consumption.
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