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石油天然气 shíyóu tiānránqìstresses
oil нефть и природный газ
oil.proc. естественный нефтяной газ
石油天然 气
: 108 phrases in 9 subjects
Business2
Education5
General64
Geology3
Oil / petroleum2
Oil and gas16
Oil processing plants4
Oilfields3
Technology9