地质年代 dìzhìniándài geological era Definitions Defs Origin Strokes Stroke Words Sentences Sents 地质年代 地質年代 dìzhìniándài geological era The sequence of periods in Earth's history based on the formation of rock layers and evolution of life; includes both relative age and absolute age determined by isotopes Frequency Written text 0.097 per million Sources Frequency data BCC Corpus (BLCU)
地质年代 地質年代 dìzhìniándài geological era The sequence of periods in Earth's history based on the formation of rock layers and evolution of life; includes both relative age and absolute age determined by isotopes Frequency Written text 0.097 per million Sources Frequency data BCC Corpus (BLCU)
