... randomness test 随机性检验 range exhaust system 炉灶排气系统 range finder 测距计 ...
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range e exhaust system 炉灶排气系统
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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。
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