常开指的是在电力系统里面,标准规定,所有触点应该在自然、未通电状态下。如果两个触点是导通的,就称为常闭(NC Normally closed )。如果两个触点是断开的,就称为常开(NO Normally open )。
重型汽车管路维修资料|进口汽车维修技术缩略英语词典(2) ... N Newton牛(顿) N Neutral空档 N/A Natural Aspirate自然进气式引擎 ...
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日常开支 overhead ; general expense ; daily expenses ; Day-to-day spending
常开式 Normally open type
非经常开支 capital expenditure ; capital spending ; non-recurrent expenditure ; Nonrecurring Charge
笑口常开 Laugh often ; Grin all the time ; Grinning all the time ; Joke around ; grinning all the time
常开触点 [电] normally open contact ; contact normally open ; mutation ; NO contact
常开状态 normal open
经常开支 recurrent expenditure ; overhead ; operating expense ; overhead charges
常开阀 normally open valve ; NO Valve
常开接点 normally open contact ; Normally Open
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