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| 殷氏圆锥管 | |||
| 殷霍夫式锥形管; 殷霍夫锥测量沉淀性物质的玻璃圆锥体 | |||
| 英霍夫锥形管 | |||
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| 殷氏圆锥管; 英霍夫锥形管 (测定沉淀性物质用) | |||
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Imhoff cone : 4 phrases in 3 subjects |
| Architecture | 1 |
| Ecology | 1 |
| Technology | 2 |
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