Kuwotcherera kwa laser ndi mtundu watsopano wa njira yowotcherera, yomwe ili ndi ubwino wa liwiro lowotcherera mofulumira, m'lifupi wowotcherera pang'ono, zone yaing'ono yokhudzidwa ndi kutentha, mapindikidwe ang'onoang'ono otentha, msoko wofewa komanso wokongola, etc. kuphatikiza kugunda laser kuwotcherera, plas ...
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