Read Edit View history 凿岩 záoyán rock drilling Origin Definitions Defs Strokes Stroke Words Sentences Sents 凿岩 (鑿岩) záoyán rock drilling (rock) drilling Frequency Written text 0.118 per million Sources Definitions CC-CEDICT Frequency data BCC Corpus (BLCU)
凿岩 (鑿岩) záoyán rock drilling (rock) drilling Frequency Written text 0.118 per million Sources Definitions CC-CEDICT Frequency data BCC Corpus (BLCU)