inverse fourier transformation meaning in English

傅里叶反变换
傅里叶逆变换

Then fourier transformation is employed to solve equations of motion of the rings , bulkheads , stringers and fluid respectively , with their reactions ( moments ) expanded by the shell ' s in - vacuo modes . by means of continuity conditions on the interfaces between the shell and the stiffeners as well as the fluid , and inverse fourier transformation , the modal reactions ( moments ) are finally expressed by the shell ' s modal velocities
然后用fourier变换分别求解环肋、舱壁、纵骨和流场的运动方程，将它们对壳体的作用力(力矩)用壳体周向模态展开，利用它们与壳体在连接处位移连续条件以及fourier逆变换得到用壳体速度表示的模态相互作用力(力矩) 。