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Makina otenthetsera magalasi achipinda chowirikiza kawiri
Ndi kasinthidwe kosiyanasiyana, kugwiritsa ntchito kwakukulu, ukadaulo wokhwima, mphamvu zopanga zamphamvu, zomaliza zabwino kwambiri, kugwiritsa ntchito mphamvu zochepa kwambiri, ndizoyenera kupanga magalasi ambiri otenthetsera magalasi a Low-e, magalasi omangira, magalasi amipando, galasi lazida zam'nyumba. ndi galasi la mafakitale.