... 焊接程序试验 welding procedure test 井围甲板船 well deck vessel 井头,井顶(钻油) well head ...
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... 井式计数器 well counter 井形甲板船 well deck vessel 钻井机 well drill ...
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single well deck vessel 单井式甲板船
well-deck vessel 凹甲板船
single-well-deck vessel 单井型甲板船
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