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二冲程发动机工作时总是伴随着讨厌的现象:扫气时混合气由排气管流失,膨胀-换气时混合气由曲轴箱反喷至进气管。这种现象部分地仅在与进排气系统固有(共振)频率相应
Two-stroke engine work is always accompanied by the annoying phenomenon: the scavenging mixture of exhaust loss, expansion - gas mixture from the crankcase back to the intake manifold. This phenomenon is only partly due to the inherent (resonant) frequency of the intake and exhaust system