Makhalidwe a nsanja zoyankhulirana ndikuti nthawi zambiri sakhala okwera kwambiri, nthawi zambiri amakhala pansi pa 60m. Kuphatikiza pa zofunika zakusamuka kwa nsanja za ma microwave, zofunikira zakusintha kwa nsanja zolumikizirana nthawi zambiri zimakhala ndi tinyanga ta...