And detection means not only finding it, but knowing what it is.

检测不仅意味着找到它，还意味着知道它是什么。

" The real 'perfect invisibility' requires that the above detection means can be avoided, and its essence is the low detectability of any electromagnetic wave, " Chu added.

“真正的‘完美隐身’要求可以避开上述探测手段，其本质是任何电磁波的低可探测性，”褚补充道。

With the increasing diversification of modern detection means, for a single spectrum, such as visible light, infrared light, or for a single type of detector, such as radar, laser detection has long been unable to meet people's needs for " invisibility" .

随着现代探测手段的日益多样化，针对单一光谱，如可见光、红外光，或针对单一类型的探测器，如雷达、激光探测早已不能满足人们对 “隐身”的需求。