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the observatory, view from garden
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the observatory
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the observatory
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courtyard view
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清代浑仪(玑衡抚辰仪)
Qing Dynasty's Armillary
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象限仪(地平纬仪)
Quadrant Altazimuth
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赤道经纬仪(远处)及纪限仪(近处)
Equatorial Armilla and Sextant
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黄道经纬仪
Ecliptic Armilla
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天体仪
Celestial Globe
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地平经仪
Altazimuth
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地平经纬仪
Azimuth Theodolite
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明代浑仪复制品
a replica of Ming Dynasty's Armillary in the garden
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an instrument to caculate midwinter date
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日晷
a solarium made in 1790
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a marble instrument to caculate equinox date
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明代浑仪复制品
another replica of Ming Dynasty's Armillary in the courtyard
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简仪
simplified armilla
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简仪
simplified armilla
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正方案
The Square Table