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| preliminary precipitation; pre-precipitation | |||
| preformed precipitate; preprecipitation; presettling; pre-sedimentation | |||
| presedimentation | |||
| 预沉淀: 9 phrases in 7 subjects |
| Bridge construction | 1 |
| Electronics | 1 |
| Geology | 1 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Technology | 3 |
| Water resources | 1 |
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