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当管道中无水流或流量不足时,水流开关的流量靶不受力或受力不足,致使()。

发布日期:2021-03-23

当管道中无水流或流量不足时,水流开关的流量靶不受力或受力不足,致使()。
A

上部开关不接通

B

上部开关接通

C

压缩机会运转

D

压缩机不会运转

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