• Combining practice engineering, author discusses the construction method and the technique measure of peg to drill hole and to press mortar.

    本文作者结合工程实际论述钻孔施工方法技术措施

    youdao

  • Combining practice engineering, author discusses the construction method and the technique measure of peg to drill hole and to press mortar.

    本文作者结合工程实际论述钻孔施工方法技术措施

    youdao

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