| oxygen deficiency |
An atmosphere having less than the normal percentage of oxygen found in normal air. Normal air contains 21% oxygen at sea level.
출처: web.mit.edu/environment/ehs/topic/HazCommTerms.htm...
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|---|---|
| oxygen deficiency |
Oxygen deficiency occurs in atmospheres containing less than 19.5 percent oxygen.
출처: www.trenchsafety.org/trench/sample/glossary.html
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