sonic type的意思|示意

A sonic boom is the thunder-like noise a person on the ground hears when an aircraft or other type of aerospace vehicle flies overhead faster than the speed of sound or supersonic.

音爆是当飞机或其它类型的飞行器以超音速飞过头顶时，地面上的人听到的类似雷声的噪音。

A wireline well log of the sonic type that locates fractures in the rocks adjacent to the wellbore by the attenuation of acoustic energy across the fracture.

属于声波类型的一种测井方法。根据穿过裂缝的声波能量衰减来确定井眼附近岩石中裂缝的位置。

The secondary combustion efficiency with this type of nozzles was increased by about 30% than that with single sonic (or supersonic) rocket nozzles.

实验结果表明，冲压室燃烧效率比采用音速(或超音速)单喷管时提高30%左右。