例句與造句

1. 2 ) in order to solve the scattering and diffraction of sound radiation , in this dissertation , based on helmholtz equation and its boundary equations , modeling of three - dimensional fem is given for computing low frequency sound transfer function in small enclosures
   2 )為解決聲音在傳播過程中所發生的散射和衍射現象，本文基于有源helmholtz方程及其邊界條件，建立了求解小尺度封閉空間內低頻聲傳遞函數的三維有限元模型。
2. It's difficult to find diffraction of sound in a sentence. 用diffraction of sound造句挺難的