• This paper briefly introduces the application of pin timbering of full coal road in "islet faces".

    文章对“孤岛面”全煤巷锚杆支护技术应用做了简要介绍。

    youdao

  • There is a large amoant of fuzziness in the analysis of pin-jet concrete timbering structure. The pin-jet concrete timbering structure failure is a fuzzy-random event.

    锚喷支护结构分析中存在很大的模糊性,支护结构的失效是一个模糊随机事件。

    youdao

  • There is a large amoant of fuzziness in the analysis of pin-jet concrete timbering structure. The pin-jet concrete timbering structure failure is a fuzzy-random event.

    锚喷支护结构分析中存在很大的模糊性,支护结构的失效是一个模糊随机事件。

    youdao

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