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| historical geology (histogeologia) | |||
| geochronic geology; geohistory | |||
| earth history; historical geology | |||
| historic geology | |||
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地史学 : 20 phrases in 8 subjects |
| Aviation | 1 |
| Desert science | 3 |
| Earth sciences | 2 |
| General | 1 |
| Geology | 2 |
| Oil / petroleum | 5 |
| Technology | 5 |
| United Nations | 1 |
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