The selection and master design of guide drill tool are important problems usually met by field drilling operator and manufacturer.
导向钻具的选型与总体设计，是现场钻井工作者与制造厂家经常碰到的重要问题。
The selection and master design of guide drill tool are important problems usually met by field drilling operator and manufacturer.
导向钻具的选型与总体设计，是现场钻井工作者与制造厂家经常碰到的重要问题。
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