• Based on the machine development, a research and analyses of auger drill bits with different kinds of drill tips and soil cut blade angles were carried out in tree planting field.

    设备研制成功基础,对钻孔机钻头不同、不同刀刃进行了实地试验研究分析

    youdao

  • Based on the machine development, a research and analyses of auger drill bits with different kinds of drill tips and soil cut blade angles were carried out in tree planting field.

    设备研制成功基础,对钻孔机钻头不同、不同刀刃进行了实地试验研究分析

    youdao

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