| 1. | The sum of the receipts is greater than the initial outlay .
收益之和大于开始的投资。 |
| 2. | The sum of any two elements has an even number of prime factors .
其中任何两个元素之和有偶数个素因子。 |
| 3. | The sum of any two sides of a triangle is greater than the third side .
任何三角形的两边之和必大于第三边。 |
| 4. | There was a general increase in wages to meet the new dignities .
薪水普遍提高了，使之和新的显要职位相称。 |
| 5. | The sum of the total weight and the force is sometimes called boundary neutral force .
总重量与压力之和有时也称为边界中和力。 |
| 6. | The sum of the kinetic and potential energy of the body is called its total mechanical energy .
物体的动能和势能之和称为物体的总机械能。 |
| 7. | The resistance of the nonwoven to tensile rupture is the sum of two resistances in parallel .
非纺织物对拉伸断裂的阻力是两个并联阻力之和。 |
| 8. | The total pressure exerted by the atmosphere is the sum of the pressures exerted by its component gases .
大气的总压力为其各组分气体的压力之和。 |
| 9. | From eq. (3. 117) it readily follows that the average value of a sum is the sum of the average value .
由（3117）式，很容易推出一个和的平均值是各平均值之和。 |
| 10. | The virtual displacement method specifies that the sum of the shaded areas is equal to the sum of the stippled areas .
虚位移法规定阴影面积之和等于点画面积之和。 |
