Virgin Galactic, which is the main tenant there, completed an unpowered flight of its SpaceShipTwo vehicle.

太空港的主要承租方维珍银河公司完成了其“宇宙飞船二号”飞行器的飞行测试。

The Wright brothers had been flying airplanes for years, but at the time, this was the longest flight in an unpowered glider.

莱特兄弟一直在驾驶飞机，但在当时，这是滑翔机最长的飞行。

Wearing the unpowered ankle exoskeleton can help people either walk farther with the same amount of energy, or restore the normal movement pattern for people who have trouble walking.

穿着这脚踝外骨骼能帮助人用同样的能量走得更远，也可以帮助那些行走不便的人恢复正常的行走模式。

On earth, or Venus, or Titan, there's enough air that you can land largely unpowered, first by slowing down with a heat shield and atmospheric drag, and then with parachutes.

在地球、金星或泰坦上，有足够的空气可以让你在没有的情况下着陆，首先用防护罩和大气的阻，再用降落伞减速。