Sitima yaikulu injini, ndiye sitima mphamvu zomera, ndi makina amene amapereka mphamvu kwa mitundu yonse ya zombo.Injini zazikulu zam'madzi zitha kugawidwa m'mainjini a nthunzi, injini zoyatsira mkati, injini zanyukiliya ndi ma mota amagetsi kutengera mtundu wamafuta omwe amagwiritsidwa ntchito, malo oyatsira, ...
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