渐新统 jiànxīntǒng Oligocene Definitions Defs Origin Strokes Stroke Words Sentences Sents 渐新统 漸新統 jiànxīntǒng Oligocene Oligocene system in geology; a series of rock layers formed during the Oligocene epoch Frequency Written text 0.008 per million Sources Frequency data BCC Corpus (BLCU)
渐新统 漸新統 jiànxīntǒng Oligocene Oligocene system in geology; a series of rock layers formed during the Oligocene epoch Frequency Written text 0.008 per million Sources Frequency data BCC Corpus (BLCU)
