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落潮: 121 phrases in 14 subjects |
Agriculture | 2 |
Architecture | 2 |
Bridge construction | 3 |
Construction | 2 |
Desert science | 2 |
Ecology | 1 |
Engineering geology | 5 |
Forestry | 1 |
General | 11 |
Hydroelectric power stations | 7 |
Metallurgy | 1 |
Navigation | 1 |
Oil / petroleum | 3 |
Technology | 80 |