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| 楼层人口处走廊过道，通道 | |||
| 交通廊道; 交通洞 | |||
| 进水管道; 入口廊道; 进入廊道; 进口走廊 | |||
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access gallery : 5 phrases in 3 subjects |
| Electronics | 1 |
| Hydroelectric power stations | 2 |
| Technology | 2 |
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