din engleză în română Tehnică/Inginerie Mecanică/Inginerie mecanică combina agricola

Threshing and initial separation are done in the threshing
zone as a result of relationship between the rotating
cylinder bars and the stationary open grate concave (4).
Contact with the helical guide vanes (5) causes the
material to move rearward and in a circular route, letting
the material pass over the concave several times.

Multumesc anticipat.