M'mafakitale osiyanasiyana, kufunikira kolumikizana bwino ndi payipi sikungatsutsidwe. Kaya ndi kutumiza madzimadzi, makina a pneumatic, kapena ntchito zina, kulumikizana kotetezeka komanso kokhazikika kwa payipi ndikofunikira kuti zitsimikizire kuti zikuyenda bwino. Apa ndipamene chitsulo cholimba chimayamba kugwira ntchito. Ndi...
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