Saf  search
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BTAfrica
 .North Africa
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 ...Safaga Egypt
SNCity on N Red Sea.
Safe Drinking Water Act  search
RTdrinking water
 legislation
 pollution
 regulations
 United States
 U. S. Environmental Protection Agency
SN1974. Amended 1986.
safety  search
RTaircraft
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SNMethods or techniques of avoiding accident or disease. See risk assessment for safety assessment. Added to Thesaurus in 1993.
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BTarsenides
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