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| 水管网 | |||
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| 管道系统 | |||
| 管网［络］ | |||
| 管道系统; 管道网 | |||
| 管网 | |||
| 管路网 | |||
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pipe networks : 41 phrases in 8 subjects |
| Ecology | 2 |
| Engineering geology | 1 |
| Hydroelectric power stations | 2 |
| Metallurgy | 1 |
| Nuclear and fusion power | 6 |
| Rail transport | 3 |
| Technology | 25 |
| Water resources | 1 |
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