美高梅手机版官网
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这次试验的飞行器呈“飞碟”状，周身被厚厚的气囊包裹。508所称，IRDT技术基于空间充气展开结构的设计理念，集成了再入减速过程中的热防护、气动减速、着陆缓冲、水上漂浮等功能，能够实现航天器的承载、减速、防热一体化设计，使其不再需要防热大底、降落伞、缓冲气囊等附属设备。
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经济新闻精选：
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