• 介绍了锚杆支护巷的实践,并通过观测数据分析得出了有借鉴意义结论

    The practice of bolt support in reserved coal drift in mining pressure area is introduced, helpful conclusion is obtained through observation and analyse.

    youdao

  • 采用爆炸原理建立了喷流干扰计算模型。

    The aerodynamic pressure expression at jet location and in the area of jet interaction is established by blast wave principium.

    youdao

  • 技术进行研究改进基础上,对不同流态清水和进行了系统的对比观测。

    In a conceptual model, fluctuating pressure of clear water and muddy water is measured with improved measuring techniques.

    youdao

  • 技术进行研究改进基础上,对不同流态清水和进行了系统的对比观测。

    In a conceptual model, fluctuating pressure of clear water and muddy water is measured with improved measuring techniques.

    youdao

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