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铁素体 : 176 phrases in 13 subjects |
Automobiles | 2 |
Aviation | 1 |
Compressors | 1 |
Electric machinery | 3 |
Electronics | 4 |
General | 14 |
Hydroelectric power stations | 1 |
Metallurgy | 127 |
Nautical | 1 |
Oil / petroleum | 1 |
Rail transport | 1 |
Steel production | 10 |
Technology | 10 |