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- normally closed valve 常闭阀
- 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。
- normally close valve 常关阀
- Close valve completely before installation. 安装前要完全关闭阀门。
- normal close valve 常闭阀,常关阀
- 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。
- 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。
- Equipped with hydraulic check feature to close valve on pressure reversal. 配置液压止回阀来阻止阀门的压力逆向。
- Close valves at both inlet and outlet ends. 进、出水端阀门关上。
- 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。
- 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 structure of closed valve bonnet influences the perfor-mance of sucker rod pumps. 闭式阀罩是影响抽油泵使用性能的零件。
- How to Select the Main Parameters of the Grooved Ball- Chamber of Closed Valve Bonnet on Sucker Rod Pumps. 抽油泵闭式阀罩槽形球室主要结构参数的选择
- 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。
- 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。
- If cylinder does subcool, close valve and allow cylinder to warm up.DONOT APPLY HEAT! 如果钢瓶没有过冷，关闭阀门让钢瓶升温。
- Equipped with mechanical lift check feature to close valve the moment flow stops, preventing reverse flow. 配置机械提升式止回阀，当阀门出现流量停止时关闭阀门，防止倒流。
- This approach can work because in some systems "0" is invalid ports, When you attempt to use a normally closed the port connecting to it will produce different results. 这一方法能够工作是因为在一些系统中“0”是无效端口，当你试图使用一种通常的闭合端口连接它时将产生不同的结果。
- Close valve C. Open valve A, then open valve B 1.2 turn, loosen hose at test cock #4 to remove air. Retighten hose. 关闭阀门C。开启阀门A，然后将阀门B开启1.;2圈，松开测试旋塞4号上的软管排出空气。重新紧固软管。
