| 1. | The absorption peaks arising from unsaturated and aromatic vibrations are considered in chapter 3 and 5 .
由不饱和以及芳香化合物振动产生的吸收谱带将在第三和第五章中讨论。 |
| 2. | Vibrating objects produce sound waves , each vibration producing one sound wave
振动着的物体产生声波，每一次振动产生一个声波。 |
| 3. | Vibrating o * * ects produce sound waves , each vibration producing one sound wave
振动着的物体产生声波，每一次振动产生一个声波。 |
| 4. | Electrodynamic test equipment for generating vibration - methods of describing equipment characteristics
振动产生用电动式测试设备.描述设备特性的方法 |
| 5. | Noise radiated by the rail vibration is considered to be the main portion of wheel / rail noise in the frequencies blew 3000hz
研究表明, 3000hz以下的轮轨噪声中由钢轨振动产生的辐射噪声占轮轨噪声的70 %以上。 |
| 6. | Based on the mechanism to engender and spread vibration , this paper mainly studies the subject of power response in the case of vertical load
基于振动产生及传播的机理，本文主要研究了竖向荷载下的动力响应问题。 |
| 7. | Understanding the mechanism of vibration generation and its propagation rule is the prerequisite to evaluate environmental vibration correctly and appropriately
要做出正确、适当的环境振动评价，首先要清楚列车运行时振动产生的机理及其传播规律。 |
| 8. | In addition , because of different matter with different natural frequency , vibration of saw blade will weaken , when it transmits in the different matter . so the noise will be reduced
由于不同物质的固有振动频率不同，振动在不同物质间传播时，振动会降低，由振动产生的噪声也会降低。 |
| 9. | The essential cause that induces subway vibration is the inter action between the train ’ s wheels and rail . through the sleeper , ballast bed , roadbed and soil layer , the vibration spread to far place
地铁振动产生的根本原因是由于轮轨的相互作用,再通过轨枕、道床、路基和土层依次向远处传播。 |
| 10. | The noise of such structures root in the shell vibration that drove by the inner engine , when coupled with the liquid medium , the noise will affect the performance of the vessels badly
这些航行器的结构噪声来源于内部机械激励壳体振动，并带动周围流体介质振动产生声辐射，它严重影响了水下航行器的整体性能。 |
