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联合废水处理
| 设施
| 联合废水处理 | |
| tech. | combined disposal of sewerage |
| 设施 | |
| gen. | facilities |
| bridg.constr. | services |
| desert. | facility instrument; utility |
| el.mach. | installation |
| exhib. | familiarization |
| met. | service |
| space | environment |
| sport. | facility |
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| combined disposal of sewerage | |||
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联合废水处理 : 5 phrases in 3 subjects |
| Environment | 1 |
| Metallurgy | 2 |
| Technology | 2 |
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