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to phrases
井口采油装置
stresses
O&G, oilfield.
фонтанная арматура
;
арматура устья скважины
井口采油装置
包括油管头和采油树
O&G
арматура
井口采油装置:
12 phrases
in 2 subjects
Drilling
1
Oilfields
11
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