two-stroke engines 双冲程发动机
two stroke internal combustion engines 二冲程内燃机
two stroke gasoline engines 二冲程汽油机
two-stroke gasoline engines 二冲程汽油发动机
What is the difference between a two-stroke and a four-stroke engine? Most chain saws and boat motors use two-stroke engines.
二冲程和四冲程发动机的区别： 大多数链锯和摩托艇使用的是二冲程发动机。
See How Two-stroke Engines Work for more information.
更多信息见二冲程发动机工作原理。
In recent years, Delhi reduced pollution after rickshaws which had used high-polluting two-stroke engines switched to using cleaner-burning liquefied natural gas, he said.
他说，最近几年德里通过把黄包车高污染的两冲程马达改装成使用更清洁的液化天然气从而减少了污染物的排放。
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