traction current

例句：

1. 1. The tractor's traction current is essential for pulling the heavy load.
   拖拉机的牵引电流对于拉动重载至关重要。
2. 2. The power plant generates electricity using a tractor current system.
   发电厂使用牵引电流系统来发电。
3. 3.The tractor's traction current helps to maintain stable ground pressure on the wheels.
   拖拉机的牵引电流有助于保持车轮上稳定的地面压力。