首页> 美国政府科技报告 >Construction of an Air Turbine Drilling Device and Test Equipment, and Preliminary Testing of Drilling Device: Final Technical Report, (August 28, 1984 to June 2, 1987)
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Construction of an Air Turbine Drilling Device and Test Equipment, and Preliminary Testing of Drilling Device: Final Technical Report, (August 28, 1984 to June 2, 1987)

机译:空气涡轮钻探设备和测试设备的建造,以及钻探设备的初步测试:最终技术报告,(1984年8月28日至1987年6月2日)

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One full-scale drill model and the required test equipment have been built. Several different cutters have been fabricated for testing in various rock types. Tests have been conducted. (ERA citation 12:050015)

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