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沥滤 : 71 phrases in 12 subjects |
Automobiles | 1 |
Chemistry | 8 |
Earth sciences | 8 |
Ecology | 2 |
Electronics | 1 |
General | 6 |
Oil / petroleum | 3 |
Oil processing plants | 1 |
Technology | 36 |
Textile industry | 1 |
United Nations | 1 |
Water resources | 3 |