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| pressure pipe | |||
| connecting pipe | |||
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导压管 : 26 phrases in 9 subjects |
| Agriculture | 1 |
| Aviation | 3 |
| Construction | 1 |
| Ecology | 1 |
| Electronics | 7 |
| General | 2 |
| Mechanic engineering | 1 |
| Space | 1 |
| Technology | 9 |
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