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卡 环 : 183 phrases in 36 subjects |
| Air defense | 1 |
| Automobiles | 8 |
| Aviation | 3 |
| Bridge construction | 1 |
| Business | 1 |
| Compressors | 2 |
| Dentistry | 1 |
| Dermatology | 1 |
| Desert science | 1 |
| Drilling | 6 |
| Earth sciences | 1 |
| Economy | 1 |
| Electric machinery | 1 |
| Electronics | 1 |
| Environment | 1 |
| General | 1 |
| Life sciences | 2 |
| Mechanics | 1 |
| Metallurgy | 2 |
| Natural sciences | 1 |
| Nursing | 51 |
| Oil / petroleum | 5 |
| Otorhinolaryngology | 1 |
| Pharmacology | 19 |
| Plastics | 1 |
| Refrigeration | 1 |
| Reproductive biology | 1 |
| Securities | 1 |
| Skydiving | 2 |
| Space | 3 |
| Surgery | 2 |
| Technology | 55 |
| Telecommunications | 1 |
| United Nations | 1 |
| Water resources | 1 |
| Wind Energy | 1 |
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