Semi-submersible platform, drilling ship and other floating drilling devices are mostly used to drill in the deep-sea oil development.
深海石油开发大多采用半潜式平台、钻井船等浮式钻井装置进行钻井作业。
Semi-submersible platform, drilling ship and other floating drilling devices are mostly used to drill in the deep-sea oil development.
深海石油开发大多采用半潜式平台、钻井船等浮式钻井装置进行钻井作业。
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