| 1. | The third law of motion is easy to demonstrate .
第三运动定律是容易示证的。 |
| 2. | Newton's laws of motion do not single out a direction of time .
牛顿运动定律不能确定时间的方向。 |
| 3. | Newton's first law of motion is not as self-evident as it may seem .
牛顿第一运动定律并不是一看就能明白的。 |
| 4. | You can demonstrate newton's third law of motion with a garden hose .
你可以用一根浇花使用的胶皮软管来说明牛顿的第三运动定律。 |
| 5. | In the preceding chapter, the concepts of work and energy were developed from newton's laws of motion .
在前一章里，功和能的概念是由牛顿运动定律发展来的。 |
| 6. | Newton's law of motion as applied to the point mass is the well-known vector equation: f=ma .
牛顿运动定律应用于质点时就得到这样一个著名的向量方程式：Fma |
| 7. | Arguments based on the impossibility of perpetual motion can be used to support newton's third law of mechanics .
以承动机的不可能实现为基础的论据，也可用以支持牛顿第三运动定律。 |
| 8. | This subject was first soundly established in the 17th century on the basis of the axiom usually known as newton's law of motion .
这门学科最初是在17世纪根据通常称为牛顿运动定律的原理完整地建立起来的。 |
| 9. | Inertial mass can be defined only in terms of certain mechanical measurements whose success hinges on newton's law of motion .
只有用某些力学上测量，才能给惯性质量作出定义，而这些力学上的测量的成就是随牛顿运动定律而定的。 |
| 10. | These laws are defined as newton ' s laws of motion
这些定律被定义为牛顿运动定律。 |
