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该文介绍了影响小型二冲程汽油机换气品质的基本参数及换气系统的设计要点,总结了改善换气品质的各种可能措施,最后以实例说明了改善换气品质的研究动向.“,”This paper introduces the basic parameters affecting gas transfer quality in small two stroke gasoline engines and design essentials of gas transfer system,puts forward various possible measures to improve gas transfer quality,and finally explains the research trend in the improvement of gas transfer quality by citing some actual examples