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| compressed air line; compressed-air piping | |||
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| compressed-air duct | |||
| 压 气 管道: 22 phrases in 6 subjects |
| Aviation | 1 |
| Electronics | 1 |
| Engineering geology | 1 |
| Hydroelectric power stations | 1 |
| Refrigeration | 2 |
| Technology | 16 |
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