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聚透镜 : 53 phrases in 12 subjects |
| Agriculture | 3 |
| Automobiles | 1 |
| Construction | 1 |
| Dermatology | 2 |
| Electronics | 7 |
| General | 3 |
| Life sciences | 3 |
| Metallurgy | 4 |
| Optics branch of physics | 1 |
| Space | 2 |
| Technology | 22 |
| Telecommunications | 4 |
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