Capable of flying above 16, 000 feet, the unmanned aircraft provides low-altitude reconnaissance.

“扫描鹰”的最大飞行高度超过4880米(16000英尺)，可以提供低空侦察能力。

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The car will also break the low-altitude air speed record and be the fastest manned vehicle at sea level in the world.

这辆车也将打破低空风速纪录，成为在世界海平面上最快的载人车辆。

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He pushed wearily away from the dark water and flew toward the land, grateful for what he had learned about work - saving low-altitude flying.

他疲倦地从黑暗的水面起飞，向陆地进发，心想：幸亏我学会了省力的低空飞行。

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It can fly at up to 2.5 times the speed of sound and is designed for low-altitude, high-speed, precision attacks.

BBC: News | In Depth | Military Fact Files

The probe entered a special low-altitude orbit for about five months to allow the GRAND instrument to analyze emissions from Vesta's surface that result from collisions between cosmic ray particles and elements in the asteroid's dirt.

MSN: Surprisingly, giant asteroid Vesta covered in hydrogen

"Because the maximum thickness of these small, low-altitude glaciers rarely exceeds 40 metres, with such an annual loss they will probably completely disappear within the coming decades, " said lead author Antoine Rabatel, from the Laboratory for Glaciology and Environmental Geophysics in Grenoble, France.

BBC: Massive melting of Andes glaciers