M'dziko lomwe likusintha nthawi zonse laukadaulo wowunikira, magetsi opindika a LED atuluka ngati osintha masewera, akupereka yankho losunthika komanso lothandiza pazosowa zosiyanasiyana zowunikira.Ndi ngodya yawo yowunikira yosinthika, kapangidwe kanjira zambiri, komanso ukadaulo wapamwamba wowunikira komanso ukadaulo wa refraction, izi ...
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