| 1. | The nitrate ion has four fundamental modes of vibration .
硝酸离子有四个基频形式。 |
| 2. | The blade is clamped and excited into some mode of vibration .
叶片夹好后，被激发进入某种振动状态。 |
| 3. | Certain modes of vibration may be suppressed while others may be enhanced .
某些振型可能减弱，而另一些则可能加强。 |
| 4. | Fundamental inherent mode of vibration
基本固有振动模态 |
| 5. | Undamped natural mode of vibration
无阻尼固有振动模态 |
| 6. | Fundamental natural mode of vibration
基本固有振型 |
| 7. | Fundamental mode of vibration
基谐振动模式 |
| 8. | Natural mode of vibration
固有振型 |
| 9. | The natural mode of vibration of structures can be expressed in the form of the curvature model . and it is connected correspondingly to strain
曲率模态反映的是结构的固有振型，它与应变存在着一一对应的关系。 |
| 10. | The seism response analysis of aqueduct bridge is analyzed with modal superposition method based on response spectrum which participant mode of vibration chooses the former 1 0 steps and combinatorial method was srss
渡槽的地震反应分析采用振型分解反应谱法，参与振型取前10阶，组合方法用srss法，求得结构的地震作用效应。 |
