齿轮：一种有齿轮边缘的轮子，旨在与其他齿轮或类似设备接合，形成齿轮。
a toothed wheel that engages another toothed mechanism in order to change the speed or direction of transmitted motion
同义词： gear / geared wheel / cogwheel
... appurtenance 附带权利 geared wheel 齿轮 train 列车 ...
相关网页