differential gear
讀音漢語翻譯
【計】 差動齒輪【化】 差動齒輪; 差動裝置
英文解釋：
名詞 differential gear:
- a bevel gear that permits rotation of two shafts at different speeds; used on the rear axle of automobiles to allow wheels to rotate at different speeds on curves同義詞：differential