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rotary core
| drilling
| rotary core | |
| tech. | 旋转铁芯 |
| drilling | |
| agric. | 条施 |
| bridg.constr. | 掘进 |
| met. | 钻进; 钻削 |
| O&G. tech. tech. | 钻井 |
| textile | 在裁片上钻孔; 斜纹布; 卡其布 |
| UN geol. | 钻探 |
| |||
| 旋转铁芯 | |||
| rotary core: 7 phrases in 3 subjects |
| Drilling | 1 |
| Engineering geology | 1 |
| Technology | 5 |
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