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Difference between revisions of "怎样考取低压电工证理论篇"
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→辨异
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; 仪表种类
: 电动式 仪表由固定的线圈,可转动的线圈及转轴、游丝、指针、机械调零机构等组成.
; 10
: 非高电阻率地区，接地电阻不大于 10 &Omega
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