Thus, a two-cycle engine fires twice as often as a four-cycle engine.
这样说来，两冲程发动机的点火次数是四冲程发动机的两倍。
The cycle value is four seconds, minimum.
周期值最小是4秒。
Most automobile engines operate on four stroke cycle.
大多数发动机运转为四行程循环。
The four seasons of the year make one cycle.
一年的四季形成一个周期。
There are four stages to this cycle.
这个循环有四个阶段。
Most automobile engines operate on a four stroke cycle.
大多数发动机为四行程发动机。
Miss, the cycle of the four seasons, but still can not escape the memories.
思念，轮回了四季，却依然逃不过回忆。
The four-stroke cycle which is in common use.
这就是常用的四冲程循环。
This is the four-stroke cycle which is in common use.
这就是常用的四冲程循环。
This is the four-stroke cycle which is in common use.
这就是常用的四冲程循环。
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