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| syzygy (syzygia) | |||
| synodic month | |||
| syzygy | |||
| syzygy (位置); the first and the fifteenth day of the lunar month | |||
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朔望 : 52 phrases in 10 subjects |
| Agriculture | 1 |
| Astronomy | 8 |
| Aviation | 1 |
| Earth sciences | 2 |
| General | 1 |
| Hydroelectric power stations | 3 |
| Oceanography & oceanology | 2 |
| Port facilities | 1 |
| Space | 4 |
| Technology | 29 |