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石油天然气 shíyóu tiānránqì
oil petroligenic natural gas
tech. natural petroleum gas
石油 天然气
: 118 phrases in 18 subjects
Accounting1
Automobiles2
Company name20
Drilling1
Earth sciences11
Ecology1
Economy19
Environment2
Exhibitions2
Finances1
General3
Geology2
Geophysics1
Navigation1
Oil / petroleum32
Oil processing plants1
Technology15
Telecommunications3