不定项选择在四冲程内燃机工作的一个工作循中存在着机械能转化为内能的过程也存在着内能转化为机械能的过程这两个能量转化的过程存在于 A.吸气 Template




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tomski不定项选择在四冲程内燃机工作的一个工作循中存在着机械能转化为内能的过程也存在着内能转化为机械能的过程这两个能量转化的过程存在于 a.吸气 coloring