Pamtondo wamanja wamkuwa ndi ntchito yake, ndi ya mitundu yotsetsereka, imagwira ntchito pansi ponyamula mikangano, shaft yachibale ikuzungulira, imafunikira thandizo kuti ntchito yamafuta igwire ntchito. phokoso.Pansi pa mawonekedwe amadzimadzi amadzimadzi, kutsetsereka pamwamba pamafunika mafuta osakhudzana mwachindunji, kumathandizanso kuti muchepetse kutayika kwa mikangano ndi kuvala kwa filimu yamafuta yapamtunda imakhalanso ndi kuthekera kwakanthawi kokwanira

Kodi kondomu, kuzirala, anti-mikangano, kutalikitsa moyo, ndi zina zambiri.

Dzanja lamkuwa limagwiritsidwa ntchito kwambiri pamakina, kusindikiza ndi kupaka utoto, kupanga mapepala, mankhwala, malo osungira zinthu, malasha, mafuta, galimoto, makina amisiri, zitsulo ndi mafakitale ena.