on off state 通断状态
The utility model discloses a bracing wire switch which can display on-off state.
本实用新型公开了一种能够显示通断状态的拉线开关。
When the utility model flushes, the on-off state of the shut-off valve can be indirectly adjusted.
冲洗时可间接调整截流阀的开关状态。
If a neon tube is connected with the utility model in series, the on-off state can be conveniently judged at night, and simultaneously, the existence of an electricity can be judged in the circuit.
如果再串联一个氖管则在夜间亦能方便地判断开关的通断状态,同时还可判明电路中是否有电。
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