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File:The Reduction of Airborne Dust Generated by Roof Bolt Drill Bits Through the Use of Water (CDC 1995).pdf

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Русский: Технический отчёт Национального института охраны труда (NIOSH) о исследованиях в области защиты от пыли при бурении скважин за счёт использования воды.
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Source The reduction of airborne dust generated by roof bolt drill bits through the use of water.
Author Sundae LS, Summers DA, Wright D, Cantrell BK

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Public domain This image or media file contains material based on a work of a United States Department of the Interior employee, created as part of that person's official duties. As a work of the U.S. federal government, such work is in the public domain in the United States. See the Department of the Interior copyright policy for more information.

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current10:47, 11 March 2015Thumbnail for version as of 10:47, 11 March 20151,275 × 1,643, 30 pages (532 KB)AlexChirkin (talk | contribs)User created page with UploadWizard

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