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- normally open and normally closed contacts 常开和常闭接触器
- normally closed contact 常闭触点
- We must keep in close contact with the masses. 我们必须密切联系群众。
- 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。
- Experts say it requires close contact. 专家表示，该病通过近距离的接触传播。
- She is still in close contact with Sarah. 她仍然同萨拉人联系密切。
- Please maintain a close contact. 请保持密切联系。
- Close contact with each product dept. 与各生产部门密切联系。
- Contact arrangement available in choice of single pole double throw (SPDT) or single pole single throw (SPST), either normally open (NO) or normally closed (NC). 联络安排，可在选择单极双掷（ SPDT产品技术）或单极单掷（的SPST ） ，无论是通常开放（无）或常闭（ NC ）进行。
- He keeps in close contact with his sons. 他和儿子们保持密切的联系。
- 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。
- Keep the close contact with the relative divisions and oversea colleagues to ensure a normally products supply and payment in Import and Export. 与相关部门和海外同事保持密切联系,保证进出口的供货和收汇正常;
- While people do not normally catch it, humans can contract the virus, usually if they have been in close contact with pigs. 虽然患病概率不高，但人类还是有可能被该类病毒感染，被感染者通常与病猪有过密切接触。
- How to flexibly use the normal opened contact and normal closed concoct to bring about multifunchonal controlling are emphatically described. 重点阐述了如何灵活运用晶体管液位控制器的常开接点、常闭接点，实现多种控制功能，达到为黄金生产服务的目的。
- She has kept in close contact with the victims' families. 她与受害者的家人一直保持着密切的联系。
- Avoid close contact with poultry and birds - do not feed birds. 尽量避免接触家禽和鸟类,不要喂饲禽鸟。
- Buyers and sellers lost some of their close contact with markets. 买主及卖主丧失了某些与市场的联系。
- 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。
- I keep close contacts with my friends. 我和我的朋友经常联络。
