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Magnesium Oxysulfate Cement Sealant in Coal Mines
Jack E. Fraley
Robert E. Simpson
Robert Edmund Simpson
出版
U.S. Department of the Interior, Bureau of Mines
, 1976
URL
http://books.google.com.hk/books?id=fLNpNSyGRpgC&hl=&source=gbs_api
EBook
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