Double cylinder kutenderera muchina wejasi ane maviri maviri emasanda; imwe pane dial uye pamwe nekuita cylinder. Iko hakuna mutadzi mune maviri manejimendi emachina. Uyu gadziriro mbiri dzevanonyevera dzinobvumira kuti machira iite kuti ubatwe kaviri seyakaenzana nemucheka wejersey sameeralu
