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离子 质谱仪 : 40 phrases in 12 subjects |
| Agriculture | 1 |
| Chemistry | 1 |
| Earth sciences | 6 |
| Electronics | 5 |
| Geology | 5 |
| Metallurgy | 1 |
| Oil / petroleum | 1 |
| Plastics | 1 |
| Polymers | 2 |
| Space | 6 |
| Technology | 10 |
| Water resources | 1 |
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