司天监 sītiānjiàn Bureau of Astronomy Definitions Defs Origin Strokes Stroke Words Sentences Sents 司天监 司天監 sītiānjiàn Bureau of Astronomy Imperial astronomical bureau during the Song dynasty responsible for astronomical observations and the calendar Frequency Written text 0.046 per million Sources Frequency data BCC Corpus (BLCU)
司天监 司天監 sītiānjiàn Bureau of Astronomy Imperial astronomical bureau during the Song dynasty responsible for astronomical observations and the calendar Frequency Written text 0.046 per million Sources Frequency data BCC Corpus (BLCU)
