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| boat dredge | |||
| dredging engine | |||
| surface net; dragging gear | |||
| sludge barge | |||
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| excavator | |||
| drag | |||
| dragline | |||
| dredge USA | |||
| dredge; dredger | |||
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| dredge | |||
| sludging | |||
| sweeping | |||
| dredging | |||
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| dredgers boats | |||
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dragas : 39 短语, 14 学科 |
| 一般 | 1 |
| 养鱼(养鱼) | 2 |
| 农业 | 3 |
| 化学 | 1 |
| 地球科学 | 1 |
| 建造 | 4 |
| 机械工程 | 3 |
| 渔业(渔业) | 1 |
| 煤炭 | 1 |
| 爱好和消遣 | 2 |
| 环境 | 6 |
| 生命科学 | 1 |
| 行业 | 1 |
| 运输 | 12 |