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型井架
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Subject
Chinese
English
dril.
k-
型井架
cantilever derrick
oil
小
型井架
底座
pony-substructure
dril.
箱型底座折叠式井架
box type fold mast
dril.
箱型底座折叠式井架
box type cantilever mast
tech.
集装箱井型架
container cell
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