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41. | alum precipitation |
| 明矾沉淀作用 |
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42. | iron oxide precipitation |
| 氧化铁沉淀 |
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43. | by product precipitation |
| 副产品沉淀 |
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44. | contamination precipitation |
| 杂质的沉淀 |
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45. | aggregation precipitation |
| 混凝沉淀 |
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46. | precipitation unit |
| 静电沉淀辐射计 |
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47. | displacive precipitation |
| 推移沉淀作用 |
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48. | precipitation gelation |
| 沉淀凝胶化 |
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49. | differential precipitation |
| 示差沉淀 |
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50. | discontinuous precipitation |
| 不连续沉淀 |
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