... drill cutter钻头铣刀 drill derrick钻塔 drill drift冲杆 ...
基于82个网页-相关网页
four-leg drill derrick 四腿钻塔
hoisting on drill derrick 钻井架提升
drill l derrick 钻塔
drill derrick
钻机井架
以上为机器翻译结果，长、整句建议使用 人工翻译 。
What they do is they sign a lease, and then a company comes along eventually and sets up a well and a derrick, and then they drill the well themselves.
NPR: Drilling for Gas in Dallas-Fort Worth
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