Subject | Chinese | English |
bridg.constr. | 岩心钻孔 | rock core hole |
eng.geol. | 岩心钻孔 | corehole |
bridg.constr. | 岩心钻孔 | core hole |
gen. | 全断面无岩心钻孔的 | full-hole |
hydroel.st. | 钻孔岩心 | boring core |
hydroel.st. | 钻孔岩心 | borehole core |
hydroel.st. | 钻孔岩心 | bore hole specimen |
hydroel.st. | 钻孔岩心 | bore specimen |
desert. | 钻孔岩心 | drill core |
expl. | 钻孔岩心采取率衡量岩石钻探工程质量的一项重要指标,是钻进采得的岩心长度与相应实际钻进尺之比,以百分率表示 | recovery of drilling hole |