mean width ratio

例句：

1. 1. The engineer calculated the mean width ratio of the bridge to ensure its stability.
   工程师计算了桥梁的平均宽度比，以确保其稳定性。
2. 2. The company's new product has a mean width ratio of 0.85, which is significantly better than its competitors.
   该公司的新产品具有0.85的均值宽度比，这明显优于竞争对手。
3. 3.The researcher found that the mean width ratio of the sample group was higher than that of the control group.
   研究者发现样本组的均值宽度比高于对照组。