常关 meaning in English
normally closed
Examples
- Normally closed solenoid valve
常关式电磁阀 - Mesfet digital logic families : performance criteria for logic . logic families : normally - on logic ( fl , bfl , sdfl ) ; normally - off logic ( dcfl ) ; comparison offamilies ; examples of fabrication sequences ; performance data ; state - of - the - art commercially
10金属-半导体接面场效电晶体数位逻辑家族：逻辑效能标准。逻辑家族：常开逻辑( fl ， bfl ， sdfl ) ，常关逻辑( dcfl ) ，家族比较，制程步骤?例，效能数据，已商业化之科技产品。