石炭纪 shítànjì Carboniferous Period Definitions Defs Origin Strokes Stroke Words Sentences Sents 石炭纪 石炭紀 shítànjì Carboniferous Period The fifth period of the Paleozoic Era, characterized by vast swamps and the formation of major coal deposits. Frequency Movie subtitles 0.030 per million appears in 0% of films Written text 0.118 per million Sources Frequency data SUBTLEX-CHBCC Corpus (BLCU)
石炭纪 石炭紀 shítànjì Carboniferous Period The fifth period of the Paleozoic Era, characterized by vast swamps and the formation of major coal deposits. Frequency Movie subtitles 0.030 per million appears in 0% of films Written text 0.118 per million Sources Frequency data SUBTLEX-CHBCC Corpus (BLCU)
