In this paper, the radiation pressure and directional formulation are calculated by use of Reily-integrate, The directivity of radiated sound field of quadrate ring piston is analyzed.是什么意思_In this paper, the radiation pressure and directional formulation are calculated by use of Reily-integrate, The directivity of radiated sound field of quadrate ring piston is analyzed.在線(xiàn)翻譯_英語(yǔ)_讀音_用法_例句