Each alarm kit displays the phase to ground insulation through 15-20 branches of the network.

每台报警显示箱可反映15～20条电网支路的单相对地绝缘状态。

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Each alarm kit displays the phase to ground insulation through 15-20 branches of the network.

每台报警显示箱可反映15～20条电网支路的单相对地绝缘状态。

youdao