... space probes空间探测器 probes on planets行星上的探测器 amazing space facts太空异事 ...
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probes on planets
行星探测器
以上为机器翻译结果，长、整句建议使用 人工翻译 。
And, more romantically, robotic probes travel throughout the solar system, orbiting and landing on other planets.
ECONOMIST: SpaceShipOne
America put a man in space, put a man in orbit, put a man on the moon, created the world's first reusable spacecraft, sent unmanned probes to other planets and led the world in making important scientific discoveries outside the Earth's atmosphere.
FORBES: NASA Needs A Mission
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