track driving wheel履带: track; apron wheel; caterpil ...驱动轮: driving wheel履带驱动: caterpillar drie; caterpillar drive驱动轮: driving wheel◇驱动轮传动轴 traction drive shaft; 驱动轮轴箱 driving box磁带驱动: magnetic tape drive; tape drive下载手机词典可随时随地查词查翻译