| 1. | If we drop one variable, we must also drop one equation of motion .
如果我们去掉一个变量，则必须同时去掉一个运动方程。 |
| 2. | Even in this case the equations of motion cannot be integrated exactly .
即使是在这种情况下，运动方程也是不能精确积分的。 |
| 3. | No frequency other than the driving frequency will satisfy the equation of motion .
除策动频率外，没有一个频率能够满足运动方程。 |
| 4. | A check by conventional means will confirm that these are the equations of motion of the two masses .
用传统的方法进行检验，就能确知这就是两个质量的运动方程。 |
| 5. | In order to define this irrotationality condition mathematically, let us consider the equation of motion in terms of velocities .
为了从数学上确定此无旋性条件，我们考虑以速度为未知函数的运动方程。 |
| 6. | A method for deriving the perturbation equation
直接推导摄动运动方程的一种方法 |
| 7. | Lagrange traveling equation of crawled mineral collector
履带式集矿机的拉格朗日运动方程 |
| 8. | Motion equation of single particle in flow field of turbomachines
涡轮机械流场中单颗粒的运动方程 |
| 9. | Boussinesq equation of motion
布辛涅斯克运动方程 |
| 10. | Euler equations of hydrokinetics
欧拉铃运动方程 |
