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The Mastery of the Air
操纵空气
William J. Claxton威廉·J·克拉克斯顿
...
Flying Machines: Construction and Operation
飞行器:结构和原理
W. J. JackmanW·J·杰克曼
"A Practical Book Which Shows, in Illustrations, Working Plans and Text, How to Build and Navigate the Modern Airship."...
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