| 1. | Sound reflection and sound shadow simulation technology of high frequency sonar
高频声纳回波影像仿真技术 |
| 2. | Sound reflection coefficient
声反射系数 |
| 3. | Sound reflection factor
声反射系数 |
| 4. | Road traffic noise reducing devices - test method for determining the acoustic performance - intrinsic characteristics - in situ values of sound reflection and airborne sound insulation
道路交通降噪设备.声学性能测定的试验方法.固有的特征.声音反射和空气载声隔绝的原地测定值 |
| 5. | Road traffic noise reducing devices - test method for determining the acoustic performance - part 5 : intrinsic characteristics ; in situ values of sound reflection and airborne sound insulation ; german version cen ts 1793 - 5 : 2003
道路交通减噪装置.声音性能测试方法.第5部分:内在特 |
| 6. | Dolphins use sound as their primary sense , that is , instead of using sight , dolphins listen to sound reflections to determine where they are underwater , if there are any obstacles in their way and to find fish
中华白海豚利用声音作为主要感官，换言之，海豚不用视觉，而是凭声波反射来确定自己于水中的位置判断前路有否受阻及觅食。 |
| 7. | On the basis of this method , this dissertation makes further analysis on the sound reflection in spherical conformation . this dissertation also makes accurate conclusion of the sound focusing region , and the increment of sound pressure level in this region
而本文是在这一方法的基础上对球形构造声反射做更进一步的分析，对其形成的声聚焦区域及区域内的声压级的增量得到量化的结果。 |
