| 1. | 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。 |
| 2. | The pressure in a perfect gas, being directly proportional to the kinetic energy of the molecules, has a lower bound of zero .
理想气体的压力与分子的动能成正比，它的下限为零。 |
| 3. | The elongation of a body in tension above its no-load length is directly proportional to the stretching force .
物体在拉伸状态下，其伸长量（相对于无负荷时的长度）与拉伸力成正比。 |
| 4. | Law3 ： learning is directly proportional to the amount of fun you have
学习是与自己本身的喜好度成正比。 |
| 5. | Port closure directly proportional to stem travel for throttling
端口关闭与阀杆运动成正比例，适用于节流。 |
| 6. | The servicee life of the coating is directly proportional to the thickenss applied
涂层的保护寿命直接与涂膜厚度成正比。 |
| 7. | The badness of a movie is directly proportional to the number of helicopters init
一部电影的恶劣程度和它里面的直升飞机的数量成正比。 |
| 8. | The currency s strength is directly proportional to the distance from the finger to the electrode
电流的强弱与手指到电极的距离成正比。 |
| 9. | Encryption using a public - private key is slow and is directly proportional to the size of the data being encrypted
使用公司密钥加密很慢，而且直接与加密的数据大小成正比。 |
| 10. | Studies show that mass of clusters or galaxies is always directly proportional to the mass of the central black hole
研究发现，星团或星系的质量总是和中心黑洞的质量成正比。 |
