◎ Kuchepa kwa kutentha komanso kutsika kwamafuta
Mkulu compressive mphamvu
◎ Zinthu zosawonongeka komanso zolimba bwino
◎ Kukula kokhazikika komanso kusalala bwino
Kapangidwe kofanana, kosavuta kupanga makina
Zosavuta kukhazikitsa
Kupanga kosalekeza, kugawa ulusi wofanana, komanso magwiridwe antchito okhazikika
Kukhazikika kwabwino kwamafuta komanso kukana kugwedezeka kwamafuta
Nthawi yotumiza: Apr-28-2023