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- normally closed track circuit 普通闭合轨道回路
- closed track circuit 正常闭合轨道电路
- Normally closed position, opens when pressure reaches set-point. 通常处于关闭位置,当压力达到设置点时开启。
- Though there is no train is occupying the overlap track circuit. 虽然没有火车占领交叠轨道电路。
- The VMR type valve is a fast opening solenoid valve that is normally closed. 一种快开快闭的燃气安全阀，是常闭型的电磁阀, 在断开的状态下弹簧作用在阀芯上以阻止气体的通过。
- TYPE WS：Forged Brass Body,Normally Close,For Steam.High Temp.Fluids etc. 型号WS：锻铜阀体，通电阀型，适用于蒸气、高温流体等。
- Track circuit Trackside device used for track free/occupied determination. 轨道电路用于轨道空闲/占用检测的轨旁设备。
- The actual record attempt will be held on a closed track in Eureka, California some time within the next few months. 实际纪录将于封闭赛道尤里卡，加州一些时间在未来几个月内。该纪录是认可和公认的国际人权动力汽车协会，谁制定规则和监督活动。
- The DG453 and DG456 each have two normally closed and two normally open switches. DG453与DG456均具有两个在正常情况下为闭合状态的开关,以及两个在正常情况下为断开状态的开关。
- The first floor of the normally closed pagoda will be especially opened to the public during this period. 这次也将对平常不公开的塔的一楼部分进行开放。
- normally deenergized track circuit 开路式轨道电路
- The PV20CB is a normally closed, diaphragm actuated, spring loaded, direct acting regulator. PV20CB是一种通常处于关闭状态，隔膜驱动，弹簧负载，直接作用的调节阀。
- The jointless track circuit is an advanced control system which is used tocontrol the trains. 无绝缘轨道电路是一种先进的列车控制系统。
- Know how much time you have to complete the remainder of the exam. Have a watch or clock with a second hand to keep close track of time. 要知道完成所剩试题需要的时间。注意带上有分针的表,以准确把握时间。
- It is a special power supply equipment designed recently for phase sensitive track circuit in AC electrified railway. 该新型25赫小站电源屏是我厂最新研制的交流电气化区段站内相敏轨道电路的专用供电设备。
- This thesis assesses the possible maximum allowable capacity of distributed generation (DG) interconnected to a normally closed loop feeder. 摘要:本论文旨在评估分散型电源在常闭环路配电馈线上之最大可并网量。
- The thief was closely tracked by the policemen. 那个窃贼被警察紧紧地盯住了。
- Load contacts 56 and 78 will also change from their normally open or normally closed position when the control energizes. 当控制装置激活时，负荷端子56和78将也改变正常开启或正常关闭状态。
- The research results may provide some references for the design of ballast-less track and the research of adoptability of ballast-less track on joint-less track circuit. 本文的研究结果对于进一步开展无碴轨道的设计和无碴轨道对无绝缘轨道电路适应性研究具有一定的指导作用。
- normally energized track circuit 闭路式轨道 电路
