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生物地层
| 单位
| 生物地层 | |
| oil | biostratum |
| 单位 | |
| gen. | organization thought of as a sub-unit of a larger organization |
| econ. | denomination |
| interntl.trade. | denomination; line |
| manag. | entity |
| math. | division |
| metrol. | unit of measurement; measurement unit |
| tech. | unit |
| |||
| biostratum | |||
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生物地层 : 29 phrases in 7 subjects |
| Agriculture | 1 |
| Earth sciences | 1 |
| Engineering geology | 1 |
| General | 1 |
| Geology | 1 |
| Oil / petroleum | 15 |
| Technology | 9 |
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