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| 观众席座灯光 | |||
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| 会议室照明 | |||
| house lights: 13 phrases in 6 subjects |
| Aviation | 1 |
| Business | 1 |
| General | 2 |
| Hydroelectric power stations | 1 |
| Shipbuilding | 1 |
| Technology | 7 |
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