The technology in further developing diamond wire line core drilling techniques in Huanglong Coalfield also forecasted.

展望了黄陇煤田发展金刚石绳索取心工艺技术.

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This paper describes and summarizes the core drilling process and the technical measures.

文章介绍并总结了该项目岩芯钻探钻孔施工工艺与技术措施.

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Lonnie Thompson is a pioneer of ice core drilling and an expert on the Himalayan glaciers.

朗尼?汤普森是冰核钻探领域的开拓者,也是研究喜马拉雅冰川的专家.

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The article briefly analysed production testing process of the large sized cord core drilling tubes.

阐述了大规格金刚石岩芯钻探用绳索取芯钻杆的生产工艺试验过程.

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