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| type I sampling | |||
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| type I sampling | |||
| 型 抽样: 37 phrases in 10 subjects |
| Agriculture | 1 |
| Animal husbandry | 2 |
| Business | 11 |
| Commerce | 1 |
| Economy | 3 |
| Mathematics | 3 |
| Quality control and standards | 5 |
| Space | 1 |
| Technology | 7 |
| Textile industry | 3 |
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