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фоновый уровень
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[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en] |
EN |
background level
Term used in a variety of situations, always as the constant or natural amount of a given substance, radiation, noise, etc. (Source: KORENa)
[http://www.eionet.europa.eu/gemet/alphabetic?langcode=en] |
FR |
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EN
DE
FR
- pollution naturelle de fond
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