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to phrases
roller cone bits
stresses
O&G, oilfield.
долота шарошечного типа
(
wendy2001
)
roller-cone bit
dril.
шарошечное долото
(см.
wikipedia.org
AlexanderKayumov
)
O&G, sakh.
шарошечное коническое долото
roller cone bits:
7 phrases
in 3 subjects
Oil / petroleum
1
Oil and gas
1
Oilfields
5
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