| 1. | Note that it does not have the same direction as the velocity vector .
要注意它的方向与速度矢量的方向不同。 |
| 2. | Conversely, in many experiments it is possible to measure all the velocity vectors .
另一方面，在许多实验中，所有的速度矢量都可以测定。 |
| 3. | Instantaneous angular velocity vector
瞬时角速度矢 |
| 4. | Generalized velocity vector
广义速度矢量 |
| 5. | The acoustic radiation resistance matrix is combined with the velocity vector on a vibration surface to predict the total sound power radiated from the structure
摘要利用声辐射阻力矩阵和振动面上的速度矢量预报了结构声辐射的总功率。 |
| 6. | Diagrams of velocity vectors and streamlines display waveform and amplitude properties , showing the effect of fibres on enhancing the flow stability . the computational results are tested
Piv测量得到流场速度矢量图及流线图，扰动波幅与波形特征说明， re数一定时流动稳定性随h值增大而提高。 |
| 7. | Swirling flow is one of the fashions which often appears in our everyday lives and nature . swirling flow is a very complex flow because of the streamline curvature and the skewness of the velocity vector
螺旋流问题是日常生活和生产实践中经常出现的一种流动形式，由于流线弯曲、流动斜交，使流动变得十分复杂。 |
| 8. | It is shown that as long as the l norm of the gradient of the velocity vector field of the flow is finite , that is , if for any t > 0 , then the classical solution exists globally on [ 0 , t ]
该准则表明只要流体速度场的梯度的l ~范数有限，即如果对任意的，则三维无粘boussinesq方程组的古典解在[ o , t ]上整体存在。 |
| 9. | The distributions of velocity vector , vorticity . turbulent kinetic energy and some other detailed flow information in the field are obtained . the influence of electric field on the flow field is discussed and gives a deep insight on it
3 、首次采用piv技术对荷电喷雾射流流场进行了测量，获得了整个流场的瞬时速度、湍能、涡量等信息分布图，研究了流场特性随充电电压的变化情况。 |
| 10. | Besides , eigenvalue analysis is used in sound - impedance matrix . with the help of optimization theory , the conclusion is received that the radiation efficiences by a group of velocity distribution corresponding to eigenvector are proportional to the eigenvalue of the velocity vectors
并对阻抗矩阵进行了特征值分析，从理论上说明了特征向量对应的一组速度分布，其辐射效率正比于该阶特征向量对应的特征值。 |
