


还有就是水泵上为何有个二极管的标志,谢谢各位老师广州佳波 发表于 2026-8-27 10:12
这种事是‘电磁振荡水泵’,可动的是永磁铁,好果通入的是交流电,那么永磁的工作频率会是100HZ,太快了机 ...


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