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| 侧馏分; 停用的 | |||
| 停工; 停运 | |||
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off-stream : 25 phrases in 6 subjects |
| Bridge construction | 1 |
| Chemistry | 2 |
| Management | 2 |
| Metallurgy | 3 |
| Oil / petroleum | 4 |
| Technology | 13 |
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