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| pipeline transport | |||
| put through by line | |||
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管线输送 : 32 phrases in 8 subjects |
| Architecture | 1 |
| Aviation | 1 |
| Chemistry | 2 |
| Electronics | 3 |
| Metallurgy | 3 |
| Oil / petroleum | 6 |
| Space | 1 |
| Technology | 15 |
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