stroke-bore ratio

例句：

1. 1. The engineer used a special tool to measure the stroke-bore ratio of the machine.
   工程师使用特殊的工具来测量机器的压痕比。
2. 2. The manufacturer is trying to improve the stroke-bore ratio of their products.
   制造商正在努力提高他们产品的压力比。
3. 3. The new design has a higher stroke-bore ratio, which means it can handle heavier loads.
   新设计具有更高的压力比，这意味着它可以处理更重的负载。