齿轮齿条 chǐlúnchǐtiáo rack and pinion Definitions Defs Origin Strokes Stroke Words Sentences Sents 齿轮 齒輪 chǐlún gear gear; gear wheel; a wheel with teeth along its edge used to transmit power or motion by engaging with another toothed part齿条 齒條 chǐtiáo rack a bar with teeth that meshes with a gear or pinion to convert rotation into linear motion; spline
