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| 地面试样 | |||
| 地表样品; 表面取样; 表层试样 | |||
| surface sample: 12 phrases in 6 subjects |
| Aviation | 1 |
| Earth sciences | 2 |
| Geophysics | 1 |
| Oil / petroleum | 2 |
| Space | 2 |
| Technology | 4 |
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