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| 散热器下水室 | |||
| 双层底舱 | |||
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bottom tank : 59 phrases in 14 subjects |
| Animal husbandry | 1 |
| Automobiles | 2 |
| Aviation | 2 |
| Chemistry | 1 |
| Drilling | 1 |
| Electronics | 1 |
| International trade | 2 |
| Metallurgy | 7 |
| Nautical | 2 |
| Navigation | 1 |
| Oil / petroleum | 17 |
| Plastics | 1 |
| Rail transport | 1 |
| Technology | 20 |
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