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| 简单抽提 | |||
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| 一次萃取 | |||
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single -extraction : 19 phrases in 6 subjects |
| Chemistry | 1 |
| Ecology | 4 |
| Metallurgy | 8 |
| Nanotechnology | 1 |
| Oil / petroleum | 1 |
| Technology | 4 |
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