METHOD FOR DETERMINING WANT OF BITS WHEN SINKING DRILLINGS UNDER INTRICATE GEOLOGICAL CONDITIONS

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作者：
PEDKO, A
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ZEITSCHRIFT FUR ANGEWANDTE GEOLOGIE | 1977年 / 23卷 / 10期
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P [天文学、地球科学];
学科分类号：
07 ;
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页码：533 / 535
页数：3
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