Speed machine
本文作者： 21ST
An artist's drawing of the X-43A research vehicle (交通工具), designed to be the fastest airplane in the world. It will make its first flight on March 27, weather permitting. The X-43A has... |  |
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中报二十一世纪（北京）传媒科技有限公司版权所有，未经书面授权，禁止转载或建立镜像。 主办单位：中国日报社 Copyright by 21st Century English Education Media All Rights Reserved 版权所有 复制必究 网站信息网络传播视听节目许可证0108263 京ICP备2024066071号-1  京公网安备 11010502033664号
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