change speed gear with toothed gears是什麼意思、英文翻譯及中文解釋
change-speed gear with toothed gears
詞語: change-speed gear with toothed gears
解釋: 帶齒輪的變速齒輪
詞典: 專利專業英漢詞典
change-speed gear with toothed gears
詞語: change-speed gear with toothed gears
解釋: 帶齒輪的變速齒輪
詞典: 專利專業英漢詞典