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| 壳体密封 | |||
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housing seal : 14 phrases in 8 subjects |
| Automobiles | 1 |
| Chemistry | 1 |
| Compressors | 2 |
| Electronics | 2 |
| Metallurgy | 1 |
| Nuclear and fusion power | 1 |
| Rail transport | 1 |
| Technology | 5 |
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