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桥墩 : 316 phrases in 12 subjects |
Architecture | 5 |
Bridge construction | 102 |
Construction | 3 |
Ecology | 1 |
Engineering geology | 7 |
Explosives and Explosive Ordnance Disposal | 2 |
General | 5 |
Hydroelectric power stations | 4 |
Metallurgy | 2 |
Rail transport | 10 |
Technology | 174 |
United Nations | 1 |