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| 金属与金属密封 | |||
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metal/metal seal : 46 phrases in 13 subjects |
| Automobiles | 2 |
| Aviation | 7 |
| Chemistry | 1 |
| Drilling | 1 |
| Electronics | 5 |
| General | 1 |
| Hydroelectric power stations | 1 |
| Mechanics | 5 |
| Metallurgy | 3 |
| Navigation | 1 |
| Oil / petroleum | 6 |
| Oil processing plants | 1 |
| Technology | 12 |
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