speed-length ratio

例句：

1. 1.The car's speed-length ratio is crucial for its performance.
   汽车的速度与长度比例对其性能至关重要。
2. 2. The engineer calculated the speed-length ratio to optimize the design.
   工程师计算了速度与长度比例以优化设计。
3. 3. The team used the speed-length ratio to determine the optimal path for the project.
   团队使用速度与长度比例来确定项目的最佳路径。