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| amount of vacuum | |||
| vacuum capacity | |||
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真 空量 : 30 phrases in 11 subjects |
| Automobiles | 2 |
| Aviation | 2 |
| Chemistry | 2 |
| Electronics | 3 |
| General | 1 |
| Nanotechnology | 1 |
| Oil processing plants | 1 |
| Refrigeration | 1 |
| Shipbuilding | 2 |
| Space | 3 |
| Technology | 12 |
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