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| 纸上室内作业法 | |||
| 纸上〔室内〕作业法 | |||
| 纸上作业法 | |||
| 图上作业法 | |||
| 室内作业法 | |||
| paper method: 22 phrases in 9 subjects |
| Agriculture | 2 |
| Animal husbandry | 1 |
| Chemistry | 1 |
| Ecology | 1 |
| Explosives and Explosive Ordnance Disposal | 1 |
| Oil / petroleum | 2 |
| Technology | 12 |
| Textile industry | 1 |
| Water resources | 1 |
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