搜索 - 科创

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貌似你接在铁柱子上面了。。。好像你是把初级线圈的上方搞一个非闭合的铜环，然后接铁柱。。铁柱接地不怎么好的。。。接地还是必须在一楼刨坑或者铁水管。接地真的是个不容易解决的问题。。。

那我提供一个办法，如果可以的话可以在载物台上内藏两个磁铁，然后把弹簧片改成贴海绵的小磁片，不用时正负极和载物台的磁铁相反，磁片就会牢牢吸在载物台上，拿下清洗也没问题，用时让上下磁铁同性相斥，磁片就会把载玻片顶在接物端上

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