jì​xiàn​yí

sextant

纪限仪 紀限儀 jì​xiàn​yí
sextant
Historical astronomical instrument used to measure the angular distance between celestial bodies within sixty degrees; a bronze version is currently located at the Beijing Ancient Observatory.

Frequency

Written text
0.003 per million

Cross-References

Classifier

Same as

Sources

Frequency data
BCC Corpus (BLCU)