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| 压力取心; 密闭取心 | |||
| 人口稠密的中心 | |||
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pressure core : 33 phrases in 10 subjects |
| Aviation | 1 |
| Drilling | 7 |
| Earth sciences | 2 |
| Electric machinery | 2 |
| Electronics | 9 |
| Engineering geology | 2 |
| Geophysics | 1 |
| Mechanic engineering | 1 |
| Oil / petroleum | 5 |
| Technology | 3 |
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