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Anthracite Mechanical Mining Investigations
Andrew AllanPaul H. KaarJohn D. Cooner
其他書名
Measurement of loads borne by underground-roadway supports. Progress report 9
出版U.S. Department of the Interior, Bureau of Mines, 1953
URLhttp://books.google.com.hk/books?id=14eiHRiykDsC&hl=&source=gbs_api
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