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61. | passive precipitation |
| 被动沉淀 |
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62. | secondary sedimentation |
| 二次沉淀 |
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63. | thermal precipitatio |
| 加热沉淀 |
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64. | settlement of sewage |
| 污水沉淀 |
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65. | ignition of precipitate |
| 沉淀灼烧 |
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66. | vacuum deposition |
| 真空沉淀 |
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67. | ignition precipitate |
| 灼烧沉淀 |
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68. | periodic precipitation |
| 间歇沉淀 |
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69. | viscous precipitate |
| 粘性|沉淀 |
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70. | scavenger precipitation |
| 清除沉淀 |
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