Ntchito mfundo: popeza ndi mfundo kusuntha, ndiye m'pofunika contactor magetsi, kaya contactor, relay, nthawi yopatsirana, onse amafunika magetsi work.So tidzagwiritsa ntchito koyilo kukhudzana pano, mukuyang'ana pa chithunzi contactor koyilo ntchito voteji, tidzagwiritsa ntchito contactor ndi 22 ...
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