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| 胀接利用管子和管板变形来紧固和密封的连接方法 | |||
| 胀接 | |||
| 膨胀节; 伸缩缝; 补偿器 | |||
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expanding joint : 3 phrases in 3 subjects |
| Chemistry | 1 |
| Rail transport | 1 |
| Technology | 1 |
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