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| 活塞环开口间隙端 | |||
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gap ends : 14 phrases in 8 subjects |
| Automobiles | 3 |
| Compressors | 2 |
| Electric machinery | 2 |
| Electronics | 1 |
| General | 1 |
| Information technology | 1 |
| Oil / petroleum | 1 |
| Technology | 3 |
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