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hard to recover reserves stresses
O&G	ТрИЗ (MichaelBurov); трудная нефть (MichaelBurov)
oil	трудноизвлекаемые запасы
hard-to-recover reserves
O&G	ТрИЗ (MichaelBurov); трудная нефть (MichaelBurov); ТРИЗН (трудноизвлекаемых запасов нефти oshkindt)
O&G, oilfield.	трудноизвлекаемые запасы (A1_Almaty)
English thesaurus
hard to recover reserves
O&G	HTR reserves (MichaelBurov)
hard-to-recover reserves
O&G	HTR reserves (MichaelBurov)

hard- to -recover reserves: 2 phrases in 1 subject

Oil and gas

2