It’s hard to explain the engineering marvel that is the SR-71 Blackbird. A long range ,plane capable of flying 26 kilometres above the surface of the planet. So high that the pilots could see the curvature on the planet and the inky black of space from their cockpits. It flew so fast that the engineers had to develop entirely new materials and designs

很难解释 SR-71黑鸟在工程学上的非凡·之处。它的航程很远,飞机能够在地球表面以上26公里的高度飞行,如此之高以至于飞行员可以从驾驶舱看到星球的曲线和漆黑的太空,它飞得如此之快,工程师们不得不开发出全新的材料和设计