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阻流 管 : 19 phrases in 10 subjects |
| Air defense | 1 |
| Aviation | 1 |
| Bridge construction | 1 |
| Drilling | 3 |
| Electronics | 1 |
| Mining | 1 |
| Oil / petroleum | 5 |
| Refrigeration | 3 |
| Semiconductors | 2 |
| Technology | 1 |
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