1. Mphamvu zamagetsi zogwiritsa ntchito dzuwa: (1) Mphamvu zazing'ono zochokera ku 10-100W zimagwiritsidwa ntchito kumadera akutali opanda magetsi, monga mapiri, zilumba, madera abusa, malo ozungulira malire, ndi zina zotero kwa moyo wankhondo ndi wamba, monga kuyatsa, ma TV, zojambulira matepi, ndi zina zotero;(2) 3-...
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