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。
In a two-stroke gasoline engine, exhaust gas pollution is especially severe when it burns rich mixture of blended fuel.
针对曲轴箱压缩的小型二冲程汽油机，分析了强化的途径、并介绍了具体的措施。
The ways of intensification are analysed and specific measures are introduced for the small-sized, two-stroke petrol engine of crankcase compression.
二冲程汽油机的分层扫气可降低其油耗和排放，国内外为此提出了多种分层扫气系统。
There are many types of stratified scavenging systems developed home and abroad, due to the merit of reducing fuel consumption and emission.
二冲程汽油机具有升功率大、机械损失小、结构简单、制造成本低以及便于维修等特点。
Two-stroke engine has its intrinsic advantages in terms of high specific power, compactness, light weight, low cost, etc.
实际评定试验中整套装置运行稳定、可靠，已成功用于TC - W3高档水冷二冲程汽油机油的清净性评定。
The all test system works well in the actual operation, which has been successful used as the evaluating detergency test for TC-W3 grade water-cooled two-stroke gasoline engine oils.
针对15A型二冲程汽油机排气系统的流动过程进行了模拟计算，对计算中某些边界条件的计算方法进行了探讨。
The characteristic method was used in simulating computation of non steady gas flow process in the exhaust system of model 15a petrol engine.
本文采用加装排气调谐腔的方法，拓宽了摩托车用二冲程汽油机排气系统的调谐转速范围，有效地改善了发动机在中低速区的性能。
By means of the tuning chamber, the tuning speed range of exhaust system is widened. Thus, the two-stroke petrol engine performance at the middle-low speed range can be improved.
本文主要报导了在二冲程、四冲程汽油机及柴油机上燃用甲醇-汽油混合燃料、M _(100)甲醇燃料的发动机尾气排放方面所做的研究，并与燃用汽油、柴油的尾气排放进行了对照。
In this paper, the study on exhaust emission from 2-stroke, 4-stroke gasoline engine and diesel engine, burning methanol-gasoline blend fuel and M100 methanol fuel has been reported.
本文主要报导了在二冲程、四冲程汽油机及柴油机上燃用甲醇-汽油混合燃料、M _(100)甲醇燃料的发动机尾气排放方面所做的研究，并与燃用汽油、柴油的尾气排放进行了对照。
In this paper, the study on exhaust emission from 2-stroke, 4-stroke gasoline engine and diesel engine, burning methanol-gasoline blend fuel and M100 methanol fuel has been reported.
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