-
Kuyankha kwa Woyendetsa
Njira yoyesera yoyesera ndi njira yoyesera yoyeretsera zinthu pogwiritsa ntchito njira zambiri, yomwe imatha kugwiritsa ntchito njira zoyeretsera zinthu monga kupopera (kupopera madzi, kupopera m'mbali), kumiza m'madzi, nthunzi, kuzungulira, ndi zina zotero. Ikhozanso kukhala ndi njira zosiyanasiyana zoyeretsera zinthu kuti ikhale yoyenera ma laboratories atsopano opanga chakudya, kupanga njira zoyeretsera zinthu zatsopano, kuyeza mtengo wa FO, ndikutsanzira malo oyeretsera zinthu popanga zenizeni.