borehole drillingˈbɔ:həulˈdriliŋ短语¹⁴⁴⁹⁷²⁺² 基本例句 深孔凿岩 Complete and detailed geology exploration by means of borehole drilling in the job site is one of the necessary and effective measures taken during the construction of municipal underground works. 地质勘探钻孔是获取工程地质信息的最直观的形式，也是地下工程勘测阶段最主要的手段之一。 dictall.com