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alloy corrosion : 26 phrases in 9 subjects |
| Aviation | 1 |
| Chemistry | 2 |
| Compressors | 1 |
| Mechanics | 1 |
| Metallurgy | 6 |
| Oil / petroleum | 1 |
| Shipbuilding | 3 |
| Space | 1 |
| Technology | 10 |
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