| 1. | The group velocity is the speed at which modulated signals would be transmitted .
群速度就是将调制信号发送出去的速度。 |
| 2. | Negative group velocity in the band gap range
禁带区域内负的群速度 |
| 3. | Analytic expression calculating group velocity for anisotropic elastic media
各向异性固体弹性介质中群速度的解析表达式 |
| 4. | Electromagnetically induced transparency and slow group velocity in pr3 y2sio5 crystal
晶体中电磁感应光透明及群速度减慢 |
| 5. | With any signal you can talk about two speeds called the phase velocity and the group velocity
对于任何信号都有两个速度即相速度和群速度。 |
| 6. | Group velocity ( simulation output image created using matlab ? software . ) ( provided by prof . chiang c . mei
波群速度（使用matlab ?软体产生的模拟输出影像） 。 |
| 7. | Based on the wavevector diagram and group velocity , the property of light in photonic crystals can be analyzed quantitatively
基于波向量图和群速度，可以很好地分析光在光子晶体中的行为。 |
| 8. | ( 4 ) the correlation property between the distribution of attenuation factor and that of the group velocity is indicated , in this study
( 4 )研究结果显示，在频率域内，面波衰减系数分布与群速度分布具有一定的相关性。 |
| 9. | The group velocity ( u ) corresponds to the net result from the addition of all elements with different periods and different velocities within the wave motion
而群速度（ u ）符合于波动的不同周期，不同速度的各种因素叠加的净结果。 |
| 10. | The wavelet transforms were applied to identify the group velocity of flexural waves which were measured and recorded by the strain gauges and a computer
布建于铝合金板表面的应变规，是用以侦测经激震器冲击平板后所产生的应变波讯号。 |
