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| 1. | to study intensively; to dig into; to make a thorough study of; to delve into |
| 钻研 |
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| 2. | burrow porosity |
| 虫掘孔隙 |
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| 3. | burrow structure |
| 洞穴构造 |
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| 4. | U-shaped burrow |
| Ｕ型潜穴 |
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| 5. | dwelling burrow |
| 生物潜穴 |
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| 6. | pelecypod burrow |
| 瓣鳃动物潜穴 |
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| 7. | crawling burrow |
| 爬行潜穴 |
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| 8. | walled-burrow structure |
| 周壁虫孔构造 |
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| 9. | Polychaete burrow |
| 多毛目潜穴 |
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| 10. | plug-shaped burrow |
| 颈状潜穴 |
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