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| manhole | |||
| back drop; detritus chamber; detritus chamber or pit; detritus pit; detritus tank; intercepting chamber (分开排水系统与阴沟) | |||
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窨井 : 29 phrases in 4 subjects |
| Construction | 1 |
| Engineering geology | 1 |
| Hydroelectric power stations | 2 |
| Technology | 25 |
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