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31. | Bubble economy |
| 泡沫经济 |
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32. | bubble pressure |
| 泡压 |
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33. | bubble protractor |
| 气泡式分度规 |
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34. | bubble breakwater |
| 气泡防波堤 |
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35. | bubble replicator |
| 磁泡复制器 |
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36. | subsurface bubble |
| 皮下气泡 |
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37. | bubble viscometer |
| 泡沫粘度计 |
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38. | spherical bubble |
| 球形滴 |
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39. | elongated bubble |
| 小长气泡 |
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40. | bubble cavitation |
| 空|泡气蚀 |
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