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钢绞线芯 : 20 phrases in 9 subjects |
| Communications | 1 |
| Construction | 1 |
| Electronics | 1 |
| Hydroelectric power stations | 2 |
| Metallurgy | 4 |
| Oil / petroleum | 2 |
| Rail transport | 1 |
| Technology | 7 |
| Wind Energy | 1 |
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