| 释义 |
〔first〕The transmission gear or corresponding gear ratio used to produce the range of lowest drive speeds in a motor vehicle.头档，低速齿轮：限定机动车辆最低驾驶速度范围的传动齿轮或对应齿轮的比率〔first〕Of, relating to, or being the transmission gear or corresponding gear ratio used to produce the range of lowest drive speeds in a motor vehicle.头档的，低速齿轮的：限定机动车辆最低驾驶速度范围的传动齿轮或对应齿轮比率的或与之有关的 |