drill core meaning in Chinese

钻机岩心
钻孔岩心

Research for permeability test of drilling core sample from pavement
路面钻芯取样试件渗透试验研究
Technical specification of testing concrete strength with drilled core
钻芯法检测混凝土强度技术规程
Technical specification for testing concrete strength with drilled core
钻芯法检测混凝土强度技术规程
Concrete drilling core machine
混凝土钻孔取芯机
Standard test method for obtaining and testing drilled cores of shotcrete
获取和检测喷浆混凝土钻芯的标准试验方法

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