• According to the research, the natural graded gravel is the best backfill material of graded crushed stone, grit, lime stabilized soil and rock chips.

    研究表明,连续碎石、砂砾、石灰稳定几种回填材料自然级配砂砾最佳台背回填材料。

    youdao

  • According to the research, the natural graded gravel is the best backfill material of graded crushed stone, grit, lime stabilized soil and rock chips.

    研究表明,连续碎石、砂砾、石灰稳定几种回填材料自然级配砂砾最佳台背回填材料。

    youdao

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