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| 马氏漏斗黏度计 | |||
| 泥浆黏度测量漏斗; 马氏漏斗 | |||
| Marsh funnel: 7 phrases in 4 subjects |
| Drilling | 2 |
| Engineering geology | 2 |
| Oil / petroleum | 2 |
| Technology | 1 |
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