equatorial theodolite Stock Image
by JasonYU
Description
The equatorial theodolite in Beijing ancient observatory.
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Keywords
- ancient
- armillary
- astronomer
- astronomical
- astronomy
- beijing
- china
- chinese
- globe
- historic
- history
- instrument
- observatory
- preserved
- research
- science
- sightseeing
- sky
- sphere
- stone
- study
- technology
- tourism
- travel