震旦纪 zhèndànjì Sinian Period Definitions Defs Origin Strokes Stroke Words Sentences Sents 震旦纪 震旦紀 zhèndànjì Sinian Period Sinian period, a geological period in the late Precambrian era roughly 800 to 542 million years ago. Frequency Written text 0.066 per million Sources Frequency data BCC Corpus (BLCU)
震旦纪 震旦紀 zhèndànjì Sinian Period Sinian period, a geological period in the late Precambrian era roughly 800 to 542 million years ago. Frequency Written text 0.066 per million Sources Frequency data BCC Corpus (BLCU)
