Some of the moths they predate have therefore evolved a " stealth coat" - made of tiny hairs and a layer of scales - that reduces their detectability through echolocation.

因此，它们捕食的一些蛾子进化出了一种“隐形皮毛”——由微小的毛发和一层鳞片组成——降低了它们在蝙蝠的回声定位中被探测到的可能性。

" 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。