黑铅 hēiqiān graphite Definitions Defs Origin Strokes Stroke Words Sentences Sents 黑铅 黑鉛 hēiqiān graphite graphite; blacklead; fibrous lead Frequency Written text 0.022 per million Sources Frequency data BCC Corpus (BLCU)
黑铅 黑鉛 hēiqiān graphite graphite; blacklead; fibrous lead Frequency Written text 0.022 per million Sources Frequency data BCC Corpus (BLCU)
