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| 基本过程; 单元作业 | |||
| 单元生化过程 | |||
| 单元过程; 单元操作; 单元反应 | |||
| 单元处理; 反应过程 | |||
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| 单兀作业 | |||
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unit process : 43 phrases in 10 subjects |
| Automobiles | 1 |
| Aviation | 3 |
| Chemistry | 2 |
| Electronics | 4 |
| General | 1 |
| Metallurgy | 4 |
| Oil / petroleum | 2 |
| Space | 1 |
| Technology | 23 |
| Water resources | 2 |
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