刘思颉 发表于 20-4-20 07:32:45
ztony 发表于 20-9-26 12:22:23
如果你拧腾翔船用马达的话(尤其是圆轴的),不把两根线搭一块,你也照样拧不动yy3006 发表于 20-9-26 14:37:52
发电机就这原理,你短起就产生磁场,小紫哥哥 发表于 20-9-26 16:46:25
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