周新莉. MTZ77S绳索取心冲击回转钻具[J]. 煤田地质与勘探, 1991, 19(1): 64-66,71,72.
引用本文: 周新莉. MTZ77S绳索取心冲击回转钻具[J]. 煤田地质与勘探, 1991, 19(1): 64-66,71,72.
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THE STUDY OE MTZ77S WIRELINE CORING PERCUSSION ROTATION DRILLIG TOOL[J]. COAL GEOLOGY & EXPLORATION, 1991, 19(1): 64-66,71,72.
Citation: THE STUDY OE MTZ77S WIRELINE CORING PERCUSSION ROTATION DRILLIG TOOL[J]. COAL GEOLOGY & EXPLORATION, 1991, 19(1): 64-66,71,72.
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MTZ77S绳索取心冲击回转钻具

THE STUDY OE MTZ77S WIRELINE CORING PERCUSSION ROTATION DRILLIG TOOL

    摘要
  • 摘要: 介绍了钻具的结构、工作原理、技术规格、性能指标和使用效果。

     

    Abstract: It introdnial the stricure, operation princuple, techni al specifications, performance index and operating results of MTZ77S wireline coring percussion rotation drilling tool.

     

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