Boeing Boomless Jet: Boeing's concept places the engines on top of the wings, adding an extra sound barrier.
波音的静音喷气机：波音公司的概念图，将引擎放置在在机翼上方，并且增加一个额外的音障。
Boeing Boomless Jet: Boeing's concept places the engines on top of the wings, adding an extra sound barrier. NASA via wired.
波音的静音喷气机：波音公司的概念图，将引擎放置在在机翼上方，并且增加一个额外的音障。
Based on these properties, a reconstructing algorithm of concept lattice by adding attributes is proposed.
基于上述性质，给出了添加属性情况下的重建概念格算法。
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