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National Petroleum Association
gen.
全国石油
业
协会
美
oil
美国
全国石油协会
national petroleum association
earth.sc.
全国石油协会
美
interntl.trade.
国家石油协会
English thesaurus
National Petroleum Association
abbr., mining.
N
;
P.A.
abbr., polym.
NPA
National Petroleum Association:
13 phrases
in 6 subjects
Earth sciences
1
Economy
2
General
4
Geophysics
1
Oil / petroleum
4
Oil processing plants
1
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