Suble Science Phunzitsani Edzi Akhalitsa mutu wa Natural Bilatevel Exvenoous Planniction Wophunzitsira Model Ntchito zazikuluzikulu za malonda: Sinthani mutu wathunthu ndi khosi la mwana, lomwe lili ndi mbali zonse za mwana, zomwe zimagawidwa pakati pa kutsogolo kwa kutsogolo ndi khosi lalikulu la khosi la khosi. Itha kugwiritsidwa ntchito pa jakisoni wamkati wa mutu ndi khosi, kulowetsedwa (magazi), zojambula zamagazi ndikugwiritsira ntchito zoyeserera, ndipo zitha kugwiritsidwanso ntchito pokonza zopambana ■ Pali lingaliro lodziwikiratu pokhumudwitsa singano, ndipo kuboola koyenera kumabwezeretsa magazi |