Read Edit View history 岩心 yánxīn drill core Origin Definitions Defs Strokes Stroke Words Sentences Sents Senses Add sense 岩心 yánxīn drill core a cylindrical rock sample obtained by drilling into the ground during geological exploration, used for analyzing strata or mineral deposits Edit Delete References Add reference No references for this word.
岩心 yánxīn drill core a cylindrical rock sample obtained by drilling into the ground during geological exploration, used for analyzing strata or mineral deposits Edit Delete