1. However, two aircraft the same size flying at different altitudes will create sonic booms of different intensities. 然而，两个同等大小的飞机位于不同高度时，将产生的不同强度的音爆。
2. To a great extent, the development of geomechanics has coincided with the development of increasingly sophisticated logging tools, such as sonic and imaging logs. 在很大程度上，地质力学的发展已经与愈发复杂的测井工具的发展相一致，如声波测井和成像测井。
3. On the basis of vibrating theory, the cantilever beam technique was used to develop a set of testing apparatus for measuring sonic-frequency damping capacity of metal materials. 根据有关振动理论，采用悬臂梁共振法，开发了一套阻尼性能测试系统，可用于声频范围内金属材料阻尼性能的测定。
英英解释
adj.
1. (of speed) having or caused by speed approximately equal to that of sound in air at sea level
2. relating to audible sound
