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Google圖書搜尋
The Effects on Mine Ventilation of Shaft-bottom Vanes and Improvements in Aircourses
Arthur Cutts Willard
Clarence Walter Ham
Cloyde Moffett Smith
Cullen Warner Parmelee
Alfred Earl Badger
David Gerald Ryan
George A. Ballam
出版
University of Illinois
, 1932
URL
http://books.google.com.hk/books?id=ESg8AQAAMAAJ&hl=&source=gbs_api