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| corrugated metal tube | |||
| corrugated metal pipe | |||
| 波纹 金属管: 13 phrases in 9 subjects |
| Bridge construction | 2 |
| Engineering geology | 1 |
| Hydroelectric power stations | 1 |
| Metallurgy | 1 |
| Mining | 1 |
| Nautical | 1 |
| Oil / petroleum | 1 |
| Rail transport | 1 |
| Technology | 4 |
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