single-directional running automatic block

例句：

1. 1. The new car has a single-directional running automatic gearbox, which makes driving smoother and more efficient.
   这款新车配备了单向运行自动挡，使得驾驶更加顺畅高效。
2. 2. The engineer designed the single-directional running automatic gearbox to reduce fuel consumption and emissions.
   工程师设计了单向运行自动挡，以减少燃油消耗和排放。
3. 3. The single-directional running automatic gearbox is an essential component of modern vehicles, providing smoother and more efficient drivingexperience.
   单向运行自动挡是现代车辆不可或缺的部件，它提供了更顺畅、更高效的驾驶体验。