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Evaluation by Filter Methods of the Quality of Waters Injected in Waterfloods

Kenneth H. JohnstonJoe L. CastagnoUnited States. Bureau of Mines

出版	U.S. Department of the Interior, Bureau of Mines, 1964
URL	http://books.google.com.hk/books?id=KKWdvQEACAAJ&hl=&source=gbs_api

註釋

Studies were made to determine the effect of the shape of a pneumatic-rock-drill exhaust muffler on its efficiency, and the origin and reduction of exit noise from the mufflers. The report describes the investigation of rock-drill noise abatement.