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| drainage system | |||
| collecting drain; sewerage system; sewerage-system scheme; site drainage system (eines Grundstücks); building-drainage system | |||
| drain system | |||
| system of drainage | |||
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| public sewerage system | |||
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| drainage systems | |||
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Entwasserungssysteme : 7 短语, 3 学科 |
| 建造 | 4 |
| 技术 | 1 |
| 环境 | 2 |