If it needs only two strokes to complete a cycle, it is called a two-stroke cycle engine or, for short, a two-cycle engine.
如果发动机完成一个工作循环,只需要两个行程,就称为两冲程循环发动机,或者简称两冲程发动机。
2
One reason for the slipper piston is that, on the short-stroke, over square engine, the piston skirt had to be cut away to make room for the counterweights on the crankshaft.