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| array characteristic; combined characteristic | |||
| composition characteristics | |||
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组合 特性 : 10 phrases in 7 subjects |
| Automobiles | 1 |
| Dermatology | 1 |
| Drilling | 3 |
| Electric machinery | 1 |
| General | 1 |
| Technology | 2 |
| United Nations | 1 |
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