Read Edit View history 岩心 yánxīn drill core Origin Definitions Defs Strokes Stroke Words Sentences Sents 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 Frequency Written text 0.344 per million Sources Frequency data BCC Corpus (BLCU)
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 Frequency Written text 0.344 per million Sources Frequency data BCC Corpus (BLCU)