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Terms
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jackknife mast
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Subject
English
Chinese
oil
jackknife cantilever mast
折叠悬臂式井架
tech.
jackknife cantilever mast
折叠悬臂式桅杆
tech.
jackknife drilling mast
折叠式桅杆
(钻探用)
oil
jackknife mast
折叠式轻便井架
dril.
jackknife mast
折叠式井架
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