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| 两级压缩机 | |||
| 双级空气压缩机 | |||
| 双级压缩机 | |||
| 两级压气机 | |||
| 二级压缩机; 二级压气机 | |||
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two-stage compressor : 10 phrases in 3 subjects |
| Compressors | 2 |
| Metallurgy | 1 |
| Technology | 7 |
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