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| 观象〔测高，等高〕仪; 平球面 | |||
| 观像仪 | |||
| 等高仪; 星盘 | |||
| 决定维度的检测仪; 棱镜等高仪; 圆圈测天仪; 观象仪; 测星盘 | |||
| astrolabe: 13 phrases in 4 subjects |
| General | 1 |
| Natural sciences | 1 |
| Space | 5 |
| Technology | 6 |
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