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石砌块 : 164 phrases in 10 subjects |
| Architecture | 10 |
| Automobiles | 1 |
| Bridge construction | 7 |
| Electronics | 2 |
| Engineering geology | 4 |
| General | 4 |
| Hydroelectric power stations | 3 |
| Metallurgy | 1 |
| Rail transport | 1 |
| Technology | 131 |
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