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спиралеобразный
| керн
| спиралеобразный | |
| prop.&figur. | 旋涡 |
| керн | |
| gen. | 岩芯; 钻孔岩心; 定中心点 |
| geol. | 岩心 |
| oil geol. | 砂样 |
| tech. | 样芯; 堤芯; 小坑; 冲点 |
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| 旋涡 | |||
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спиралеобразный керн : 1 phrase in 1 subject |
| Oil / petroleum | 1 |
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