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| 示功图膨胀曲线 | |||
| 扩建系列; 膨胀线 | |||
| 气体膨胀压力变化曲线 | |||
| 引出线; 气体膨胀的压力变化曲线; 膨胀过程 | |||
| expansion line: 12 phrases in 6 subjects |
| Automobiles | 2 |
| Business | 2 |
| Economy | 1 |
| Electronics | 4 |
| Engineering geology | 1 |
| Technology | 2 |
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