When they go out of Rader range they become invisible again.
当他们走出国门，雷德范围，他们再次成为无形。
Hydrogen and air mixtures, within the flammable range, can explode and may burn with a pale blue, almost invisible flame.
在可燃范围内的氢和空气的混合物可能爆炸，也可能燃烧，火焰是淡蓝色，几乎看不见。
If we use ray optic techniques where light travels in beams - photons break down at close range and the object does not appear invisible.
为此我们需要将光分解为数个波的形式，目前还不清楚当光源靠近物体时，光子是否能分解并形成新的波，如果使用光线技术，光子在近距离破坏，物体无法实现隐形。
The designers knew the concept would work when they mounted a scale model in a radar range test area, to see if it could really be invisible to radar.
设计师知道这一概念将工作时，他们发起了大规模模型的雷达试验区范围，看它是否真的可以隐形雷达。
The designers knew the concept would work when they mounted a scale model in a radar range test area, to see if it could really be invisible to radar.
设计师知道这一概念将工作时，他们发起了大规模模型的雷达试验区范围，看它是否真的可以隐形雷达。
应用推荐