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| 稳定同位素【核】 | |||
| 稳定同位素 | |||
| stable isotope: 32 phrases in 6 subjects |
| Desert science | 1 |
| Earth sciences | 2 |
| Ecology | 3 |
| Geology | 2 |
| Oil / petroleum | 2 |
| Technology | 22 |
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