| 1. | The electric current varies directly with the voltage .
电流与电压成正比。 |
| 2. | Strain is proportional to stress .
应变量与应力成正比。 |
| 3. | First, the volume is proportional to the number of moles .
第一，体积和摩尔数成正比。 |
| 4. | The root system of the apple tree grows in proportion to the top .
苹果根系的生长与树冠生长成正比。 |
| 5. | The amount of scattering will thus be proportional to the number of electrons .
于是散射的量将与电子数成正比。 |
| 6. | This served to create output pulses proportional to the number of electrons emitted .
这个装置用于产生与发射电子数成正比的脉冲输出。 |
| 7. | He then observed that under these same assumptions the area is proportional to the defect .
他于是指出在同样的假设下，面积与亏值成正比。 |
| 8. | We now discuss the case of a force that is proportional to the first power of the velocity,
现在，我们要讨论力与速度的一次幂成正比的情况。 |
| 9. | One very important feature of pseudo forces is that they are always proportional to the masses .
赝力的一非常重要的特征是，它们永远与质量成正比。 |
| 10. | The rate of change of velocity, for a given body, is directly proportional to the exerted on it .
对于一个物体，其速度的变化率与它所受的力成正比。 |
