torque ratio

例句：

1. 1. The engineer calculated the torque ratio of the gears to ensure they would mesh properly.
   工程师计算了齿轮的扭力比，以确保它们能够正确啮合。
2. 2. The car's torque ratio is crucial for its performance and handling.
   汽车的扭力比对其性能和操控至关重要。
3. 3. The new design aims to improve the torque ratio, resulting in a more efficient engine.
   新设计旨在提高扭力比，以实现更高效的发动机。