氣缸中的蒸汽膨脹并推動(dòng)活塞向外運(yùn)動(dòng).Steam in a cylinder expands to push a piston outward.當(dāng)排氣沖程開(kāi)始時(shí), 氣缸被向上運(yùn)動(dòng)著的活塞刮掠.When the exhaust stroke starts, the cylinder is swept out by the upmoving piston.在發(fā)動(dòng)機(jī)氣缸里發(fā)生的動(dòng)作,可以分為四個(gè)過(guò)程或沖程.The actions taking ...