青云翻译

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Two vibration of acoustic radiation sound pressure phase when it reaches the same point, superposition of vibration sound energy has been greatly enhanced,

Two kind of vibrations produces the acoustic radiation arrives when the identical spot the sound pressure synchronism, the vibration superimposition causes the sound energy big enhancement,

Two vibration produce a sound radiation arrived at the same point, sound pressure with vibration superimposed to sound energy has been greatly enhanced.

Two vibration of acoustic radiation sound pressure phase when it reaches the same point, superposition of vibration sound energy has been greatly enhanced,