您要查找的是不是：
- spherical sound wave 球面声波
- Where there is a sound,there is sound wave. 哪里有声音，哪里就有声波。
- Where there is a sound, there is sound wave. 哪里有声音，哪里就有声波。
- Sound waves are measured by their amplitude. 声波是根据其振幅来测量的。
- The joyous sound wave drifted through the golden evening mist. 欢愉的音波，在金色的暮霭中游泳。
- A device for projecting sound waves, as in a loudspeaker. 角状扩音器一种用来产生声波的装置，如扬声器
- Broadband A band of light wave or sound wave with a wide range of frequencies. 频率范围广的一段光波或声波。
- The whale looks for food using sound waves. 鲸鱼通过声波寻找食物。
- Broadband: A band of light wave or sound wave with a wide range of frequencies. 阔波段:频率范围广的一段光波或声波。
- Short sound waves bounce off even small objects. 短声波即使遇到小物体都会产生回音。
- Sound waves impinge on the eardrum. 声波撞击着耳膜。
- They were studying the reflection of sound waves. 他们在研究声波的反射。
- The atmosphere is a medium for sound waves. 大气是声波的传播介质。
- Sound waves are measured by their amplitude . 声波是根据其振幅来测量的.
- Sound waves cannot travel through a vacuum. 声波在真空中无法传播。
- Perception of or response to sound waves. 感声，音感受对声波的感觉或回应
- Sound waves will not travel through a vacuum. 声波在真空里不能传播。
- The vibration produces sound waves in the air . 这种颤动在空气中产生了声波。
- Sound waves will reflect back from a solid surface. 音波将会从坚固的表面反射回去。
- spheric free progressive sound wave 球面行波
