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| 裂解气; 原料气 | |||
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charge gas : 12 phrases in 8 subjects |
| Automobiles | 2 |
| Economy | 2 |
| Electronics | 1 |
| Explosives and Explosive Ordnance Disposal | 2 |
| Metallurgy | 1 |
| Nautical | 1 |
| Refrigeration | 2 |
| Space | 1 |
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