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31. | electrical joint |
| 电气性接头 |
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32. | drain cock joint |
| 排水阀接头 |
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33. | tapering lap joint |
| 尖塔接头 |
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34. | labyrinth joint |
| 迷宫密封接头 |
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35. | cross-over joint |
| 交叉接头 |
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36. | slip joint |
| 滑配接头 |
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37. | Joint constant velocity |
| 等速接头 |
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38. | leakproof joint |
| 防渗漏接头 |
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39. | gas welded joint |
| 气焊接头 |
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40. | corrugated joint |
| 波纹式接头 |
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