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单词 θ213364
释义
society > occupation and work > equipment > oil and natural gas recovery equipment > [noun] > drilling equipment > devices for raising or lowering (3)
oil derrick1863

a derrick (derrick, n. 2f) used in drilling for oil.

bull-wheel1883

(see quot.).

wire line1896

Oil Industry. A cable for lowering and raising equipment in a well shaft.

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更新时间:2024/12/24 21:18:44