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.

 
  • 在設備研制成功的基礎上;對鉆孔機鉆頭不同鉆尖、不同切土刀刃角進(jìn)行了實(shí)地試驗研究和分析.
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