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亚马逊部署足够卫星，今年晚些时候将推出LEO服务
Amazon has deployed enough satellites to launch Leo service later this year
Leo will compete with SpaceX's Starlink, which had a four-year start over Amazon and has more than 10,000 satellites in its constellation.
更进一步：量化金融体系
看懂新闻只是起点——沿量化金融路径，把它变成能交付的工程能力