司天台 sītiāntái Bureau of Astronomy Definitions Defs Origin Strokes Stroke Words Sentences Sents 司天台 司天臺 sītiāntái Bureau of Astronomy The Imperial Observatory or Bureau of Astronomy, an official title used from the Tang dynasty onwards Frequency Written text 0.014 per million Sources Frequency data BCC Corpus (BLCU)
司天台 司天臺 sītiāntái Bureau of Astronomy The Imperial Observatory or Bureau of Astronomy, an official title used from the Tang dynasty onwards Frequency Written text 0.014 per million Sources Frequency data BCC Corpus (BLCU)
