ratio of moduli of elasticity

例句：

1. 1. The ratio of the two numbers is 2:3.
   这两个数的比例是2:3。
2. 2. The teacher gave us a ratio of 50% to complete the project.
   老师给了我们50%的份额来完成这个项目。
3. 3. The ratio of fat to protein in this food is too high.
   这种食物中脂肪和蛋白质的比例过高。