| 1. | Newton's law of universal gravitation is valid . 牛顿万有引力定律是正确的。 |
| 2. | Newton's law of universal gravitation has been extremely useful . 牛顿的万有引力定律是极其有用的。 |
| 3. | Newton discovered the theory of universal gravitation 牛顿创立了万有引力定理。 |
| 4. | Universal gravitation games - 4455 miniclip games 万有引力小游戏- 4399小游戏 |
| 5. | Newton ' s law of universal gravitation 牛顿万有引力定律 |
| 6. | Universal gravitation introduction 万有引力游戏攻略 |
| 7. | The similarities between the universal gravitation field and the electrostatic field 试论静电场与万有引力场的相似性 |
| 8. | Universal gravitation games 万有引力小游戏 |
| 9. | The law of universal gravitation is that existence all interacts between any two objects gravitation 万有引力定律是任何两个物体之间都存在相互作用的引力。 |
| 10. | The discovery of neptune and pluto proved the importance of the law of universal gravitation 海王星、冥王星的发现,显示了万有引力对研究天体运动的重要意义。 |