... normally-closed gate 常闭门[自] normally-closed switch 常闭开关 normally-closed 常位闭合的 ; 常闭式 ...
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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。
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。
Limit switch, directly actuated, spring returned, normally open. Switch can be specified as open or closed.
限制开关，直接启动，弹簧复位，正常情况下为断路。可指定开关为断开或接通。
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