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to phrases
取心钻头
qǔxīn zuàntóu
stresses
dril.
колонковое буровое долото
O&G, oilfield.
керновое буровое долото
oil
буровая коронка для колонкового бурения
;
коронка для бурения кольцевым забоем
;
колонковое долото
tech.
колонковый бур
取
岩
心钻头
el.
буровая колонка керна
取 心钻头
:
8 phrases
in 2 subjects
Drilling
3
Oil / petroleum
5
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