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In the vacuum of space, the amount of debris—spent rocket stages, splintered satellites, micrometeoroids—numbers in the millions, all zooming about, often at 17,000 mph speeds. They’re also constantly hitting each other in a tsuris of exponential littering. Most of these pieces are tiny, and many are not anywhere near the altitude of the ISS. But the area isn’t completely clean.。业内人士推荐WPS下载最新地址作为进阶阅读
Last month at the CES technology trade show in Las Vegas, Huang unveiled a new tech platform for self-driving cars.
Алена Шевченко (корреспондент отдела оперативной информации)