The test and popularization results of the method of putting in stalk through pulling apart core by Using the long core barrel in Sichuan hard rocks are simply presented in this article.

 
  • 本文簡(jiǎn)要介紹了撥斷巖心接單根方法在四川硬地層長(cháng)筒取心中的試驗和推廣效果。
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