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底 头 : 118 phrases in 23 subjects |
| Architecture | 1 |
| Automobiles | 1 |
| Aviation | 1 |
| Baseball | 1 |
| Chemistry | 2 |
| Compressors | 1 |
| Dermatology | 1 |
| Drilling | 22 |
| Electronics | 9 |
| Engineering geology | 4 |
| Finances | 1 |
| Fishery fishing industry | 1 |
| Food industry | 1 |
| General | 6 |
| Golf | 3 |
| Metallurgy | 2 |
| Navigation | 1 |
| Oil / petroleum | 11 |
| Rail transport | 2 |
| Securities | 2 |
| Sports | 1 |
| Technology | 36 |
| Textile industry | 8 |
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