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| water treatment | |||
| removal treatment | |||
| cleaning treatment | |||
| purification treatment | |||
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净 化处理 : 34 phrases in 12 subjects |
| Earth sciences | 2 |
| Ecology | 2 |
| Economy | 1 |
| Electric machinery | 1 |
| Electronics | 2 |
| Metallurgy | 4 |
| Oil / petroleum | 1 |
| Plastics | 2 |
| Shipbuilding | 3 |
| Technology | 14 |
| Textile industry | 1 |
| Water resources | 1 |
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