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Edité par Elephant Press, 2011
ISBN 10 : 7534769566ISBN 13 : 9787534769566
Vendeur : liu xing, Nanjing JiangSu, JS, Chine
Livre
paperback. Etat : New. Paperback. Pages Number: 99 Language: Chinese. Publisher: Henan Education Press. Invention to improve our lives. but also the community development. The book is the fact that many inventions. but also demonstrates the difficulties and obstacles on the road by the inventor of the rich inner world and invention.