钻孔法 meaning in English

bored tunnelling method

Application of technology of high gas cannon picking roof perforate gas administer
高瓦斯炮放面顶板钻孔法瓦斯治理技术应用
Study on coal seam roof gas drainage from the strike of annular fracture areas by the long drill method
开采煤层顶板环形裂隙圈内走向长钻孔法抽放瓦斯研究
Standard guide for use of maxi - horizontal directional drilling for placement of polyethylene pipe or conduit under obstacles , including river crossings
包括渡口在内的障碍物下聚乙烯管线更换时最大水平方向钻孔法使用的标准指南
Contrast to such original place test method as static load method and drilling method , the method that applying transient rayleigh surface wave to inspect the compound foundation own many virtues as low cost , high efficiency , non - destruction , and it also can save much labour and effort . furthermore , it can implement the large - wide and comprehensive inspection and evaluation of compound foundation bearing capacity
与静载试验、钻孔法等原位测试方法相比，瞬态瑞雷波检测复合地基技术具有成本显著降低、效率高、无破损等特点，可节省大量的人力物力，从而可以实现复合地基承载力大范围、全面的检测和评价，打破以往只能局部抽检的局面。