志留系 zhìliúxì Silurian system Definitions Defs Origin Strokes Stroke Words Sentences Sents 志留系 zhìliúxì Silurian system The system of rocks formed during the Silurian period in geology. Frequency Written text 0.061 per million Cross-References See 志留纪 zhìliújì Sources Frequency data BCC Corpus (BLCU)
志留系 zhìliúxì Silurian system The system of rocks formed during the Silurian period in geology. Frequency Written text 0.061 per million Cross-References See 志留纪 zhìliújì Sources Frequency data BCC Corpus (BLCU)
