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| milky way | |||
| ceiling river | |||
| Rhipsalis trigona | |||
| galaxy | |||
| 天河: 49 phrases in 13 subjects |
| Astronomy | 1 |
| Bridge construction | 3 |
| Desert science | 1 |
| Ecology | 1 |
| Electronics | 2 |
| Engineering geology | 3 |
| General | 3 |
| Hydroelectric power stations | 6 |
| Hydrology | 2 |
| Oil / petroleum | 2 |
| Shipbuilding | 1 |
| Space | 1 |
| Technology | 23 |