When no channels are selected, the first channel of each bank, which is normally-closed, is connected to an output port.

当没有通道被选中时，每组开关的第一个通道（常闭）被连接到一个输出端口。

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Three (3) normally closed, automatic reset thermostats connected in series shall be embedded in adjoining phases of the stator windings.

三(3)个串联的、能够正常关闭、自动重置温控器应该植入定子绕组的相邻相位上。

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

直接启动、弹簧复位、正常闭合的邻近限制开关。可指定开关为断开或闭合。

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For five hours this Sunday, some 10 miles of normally car-crowded Los Angeles streets will be closed to vehicular traffic and turned into a massive block party for cyclists, pedestrians, joggers, even stilt-walkers.

FORBES: LA's 10-Mile-Long Block Party

The Sistine Chapel and its ornate ceiling by Michelangelo are normally a must-see for tourists in Rome, but it was closed to the public beginning Tuesday afternoon to allow for preparations to take place.

CNN: STORY HIGHLIGHTS

Hot Springs National Park officials closed the valves to spigots at four public access points, where the 143-degree mineral water normally flows.

CNN: Shutdown touches many lives across U.S.