无愧中国近现代最伟大的科学家,钱老生日快乐! RT @SpaceX Happy Birthday to Qián Xuésen, founder of @NASAJPL!pic.twitter.com/wyg04PRe
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无愧中国近现代最伟大的科学家,钱老生日快乐! RT @SpaceX Happy Birthday to Qián Xuésen, founder of @NASAJPL!pic.twitter.com/wyg04PRe
@spacex He died three years ago, see http://en.wikipedia.org/wiki/Qian_Xuesen …
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