change speed gear with toothed gears是什么意思、英文翻译及中文解释
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change-speed gear with toothed gears
词语: change-speed gear with toothed gears
解释: 带齿轮的变速齿轮
词典: 专利专业英汉词典
change-speed gear with toothed gears
词语: change-speed gear with toothed gears
解释: 带齿轮的变速齿轮
词典: 专利专业英汉词典