您好,我已经看有关雷达罩参数设计文件 但对于这段话有一点问题 The goal is to make the wall thickness equal to the integer multiple of the wavelength in the material. This is to make sure that the Radome becomes nearly transparent for the mmWave signals. 其中的transparent所代表的什么意思? t = n * λm/ 2 已知n=natural neumber ex1、2、3 但是什么原因可以在这个地方可以代入natural number? 非常感谢