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| система уплотнения; герметичная система | |||
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密封系统 : 52 phrases in 7 subjects |
| Aviation | 1 |
| Electronics | 3 |
| General | 33 |
| Nautical | 2 |
| Oil processing plants | 1 |
| Technology | 11 |
| Thermal engineering | 1 |
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