File:Вкладыши беруши.jpg

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Русский: Диаграмма показывает низкую эффективность противошумных вкладышей при их использовании на практике - по сравнению с лабораторной эффективностью. Приводятся сведения о вкладышах семи различных конструкций.
Date
Source Preventing Occupational Hearing Loss - A Practical Guide. (From p. No. 40) DHHS (NIOSH) Publication Number 96-110
Author John R. Franks, Mark R. Stephenson, and Carol J. Merry

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Public domain
This image is a work of the National Institute for Occupational Safety and Health, part of the Centers for Disease Control and Prevention in the United States Department of Health and Human Services, taken or made as part of an employee's official duties. As a work of the U.S. federal government, the image is in the public domain.

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current13:10, 3 May 2014Thumbnail for version as of 13:10, 3 May 20141,212 × 772 (187 KB)AlexChirkin (talk | contribs)User created page with UploadWizard

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