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1. | double bottom test |
| 双层底水密试验 |
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2. | bottom double border |
| 底端双边框 |
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3. | bottom double seaming machine |
| 罐底双重封缝机 |
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4. | partial double bottom |
| 局部双层底 |
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5. | double bottom center |
| 双层底中心 |
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6. | cellular double bottom |
| 组格式双层底格状双层底 |
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7. | double bottom forward |
| 首部双层底前部双层底 |
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8. | engineroom double bottom |
| 机舱双层底 |
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9. | double - bottom kibble |
| 双底吊桶, 双底送料吊桶(井筒送料用) |
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10. | double bottom afterward |
| 尾部双层底 |
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