1) shrink pathway
钻孔缩径
3) undergauge bit
缩径钻头
4) drilling radial hole
钻径向孔
5) drilling hole diameter
钻孔直径
1.
Through theoretical analysis and experimental data,the effect of matching between piled anchor and drilling hole diameter on anchoring strength was described,and the most reasonable matching parameters of anchor diameter with drilling hole diameter were given.
通过理论分析和实验数据论述了锚杆与钻孔直径匹配对锚固强度的影响,并给出了锚杆直径与钻孔直径最合理的匹配参数。
6) big hole
大径钻孔
补充资料：径径
1.不停貌。
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参考词条