金刚石钻头的选择、使用与爱护 |
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引用本文: | 林剑秋.金刚石钻头的选择、使用与爱护[J].探矿工程,1983(2):64-64. |
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作者姓名: | 林剑秋 |
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摘 要: | Just as it has not been possible to design onecore barrel, or one sampler to accomplish all coringand sampling requirements, no diamond bit can beconsidered best, or even satisfactory, for all drillingconditions, Rather, there are available to the modern
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