And near the end of the compress stroke, the exhaust gas mixes with the fresh charge gradually, however, the distribution of the exhaust gas and the fresh charge is heterogeneous as a whole.

到压缩行程后期废气和新鲜混合气逐渐混合，但总体上废气和新鲜混合气在气缸内是处于不均匀分布的。

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In a two-stroke gasoline engine, exhaust gas pollution is especially severe when it burns rich mixture of blended fuel.

二冲程汽油机排气污染严重，尤其是燃烧混合油、浓混合气时有害物排放量大。

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In summing up the experience of failure on the basis of the oil when the manual again, open the exhaust valve to promote the stroke from the pressure chamber filled with a symbol of stability.

在总结失败经验的基础上，再次手动注油时，打开排气阀，以推进腔排出冲程压力稳定为充满的标志。

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