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The working principle and the fabricating method of the light-pointer teaching galvanometer are introduced.
介绍了光针式教学灵敏电流计的工作原理和制作方法。
youdao
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The working principle and the fabricating method of the light-pointer teaching galvanometer are introduced.
介绍了光针式教学灵敏电流计的工作原理和制作方法。
youdao