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| Chinese | English |
| 口育鱼类 | mouthbrooder |
| 口腔乳头瘤 | cauliflower disease |
| 开口凹口滑车 | snatch block |
| 池型孔口式鱼道 | orifice fish ladder |
| 池型孔口式鱼道 | pool and orifice fishway |
| 池型槽口式鱼道 | notch fish ladder |
| 池型槽口式鱼道 | pool and notch fishway |
| 犹他亚口鱼 | Utah sucker (Catostomus ardens Jordan et Gilbert) |