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| dioxygen | |||
| molecular oxygen | |||
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分 子氧 : 33 phrases in 14 subjects |
| Agriculture | 2 |
| Aviation | 5 |
| Chemistry | 8 |
| Electronics | 2 |
| General | 1 |
| Geophysics | 2 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Polymers | 1 |
| Soil science | 1 |
| Space | 2 |
| Sports | 1 |
| Technology | 5 |
| Water resources | 1 |
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