File:Фиг. F-2. Система низкого давления.JPG

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Description
Русский: Фиг. F-2. Система низкого давления
Date
Source Руководство NIOSH по респираторной защите в промышленности, перевод / translation of a document A NIOSH Guide to Industrial Respiratory Protection.
Author Нэнси Боллинджер и Роберт Шюц (Nancy Bollinger and Robert Schutz)

Иллюстрация к учебнику "Руководство по респираторной защите в промышленности" National Institute for Occupational Safety and Health (NIOSH), 1987г который используется для подготовки специалистов по охране труда в США до сих пор (2014г)

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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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