说明：  从计算电磁学的角度看，由于软件难以通用、计算规模庞大等因素的困扰，如何高效准确的求解飞机的RCS 值，一直以来都是业界及学术界十分关注的重点和难点问题。
(Computational electromagnetics from the point of view, it is difficult due to a software common to calculate factors such as large-scale problems, how efficient and accurate solution of the RCS aircraft value, has always been very concerned about the industry and academia focus and difficult problems.)