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岩心筒 yánxīntǒng
dril. barrel; barrels; sample jar
oil core barrel; core container
岩心筒取心器中获取岩心的部件 yánxīntǒng
expl. core barrel
岩心筒: 47 phrases in 3 subjects
Drilling24
Geophysics1
Oil / petroleum22

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