Limit switch, directly actuated, spring returned, normally closed. Right-click for closed or held open.

限制开关，直接启动，弹簧复位，正常情况下为闭合。右击接通或保持断开。

youdao

The normally closed contact of the Model 7169A serves to discharge the capacitor after it has been measured.

在测量完成以后，7169A型的常闭接点使电容器放电。

youdao

Limit switch, directly actuated, spring returned, normally closed. Switch can be specified as open or closed.

直接启动、弹簧复位、正常闭合的限制开关。可指定开关为断开或闭合。

youdao

And normally bustling streets near the protest area are empty with shops closed and few people daring to walk on the streets.

VOA: standard.2010.05.15

The capital was calm and businesses operated normally although some embassies were closed.

VOA: standard.2009.03.18

Sited in a military training zone, it is normally closed to the public.

BBC: Imber village abandoned during World War II opens to public

It said the accident occurred late on Friday on a run which was unlit and normally closed at night.

BBC: Italy: Russian tourists die in snowmobile accident

He also suggests asking existing customers about their interest in coming in during hours when your restaurant is normally closed.

WSJ: Chain restaurants hope longer hours mean more sales