短語詞組短語scalar acoustic wave equation 標量聲波波動方程scalar plane wave 標量平面波monochromatic scalar wave 單色標量波scalar wave approximation 標量波近似scalar wave equation 標量波動方程the scalar wave equation 將標量波動方程scalar wave function 標量波函數(shù)scalar wave theory 標量波動理論scalar wave functions 標量波函數(shù) 返回 scalar wave