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Google圖書搜尋
A Hydraulic-powered Platform for Scaling High Backs and Walls
Charles K. Rose
Stephen Utter
Carl Morris
出版
U.S. Department of the Interior, Bureau of Mines
, 1954
URL
http://books.google.com.hk/books?id=Jj5IBJ4LOyQC&hl=&source=gbs_api
EBook
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