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| 路面的单层式封层; 单层式封层 | |||
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| 单端面密封 | |||
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single seal : 18 phrases in 6 subjects |
| Automobiles | 7 |
| Compressors | 1 |
| Electronics | 2 |
| International trade | 1 |
| Oil / petroleum | 2 |
| Technology | 5 |
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