gear-stage velocity ratio

例句：

1. 1.The gear-stage velocity ratio is crucial for the smooth operation of the machine.
   齿轮阶段速度比对于机器的平稳运行至关重要。
2. 2.The engineer adjusted the gear-stage velocity ratio to optimize the machine's performance.
   工程师调整了齿轮阶段速度比，以优化机器的性能。
3. 3. In this case, the gear-stage velocity ratio was adjusted to match the speed of the conveyor belt.
   在这种情况下，齿轮阶段速度比被调整以匹配输送带的速度。