M'makina owotchera malo osungiramo mphamvu, kuwonetsetsa kuti zolumikizira zowotcherera zimakhala zabwino komanso kukhulupirika ndikofunikira kwambiri. Kuti izi zitheke, njira zosiyanasiyana zowunikira zimagwiritsidwa ntchito powunika zolumikizira zowotcherera, monga kusalumikizana kokwanira, ming'alu, kapena porosity. Nkhaniyi ikufotokoza zaukadaulo wosiyanasiyana...
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