• 本文应用虚位移原理充分考虑柱所处特殊环境的基础上,考察了直井眼中钻屈曲可能

    On the basis of energy method, the possibility of drill stem buckling in inclined straight hole is studied.

    youdao

  • 本文应用虚位移原理充分考虑柱所处特殊环境的基础上,考察了直井眼中钻屈曲可能

    On the basis of energy method, the possibility of drill stem buckling in inclined straight hole is studied.

    youdao

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