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| 正反交反复选择用于畜、禽育种中结合杂交进行测交的一种选种方法 | |||
| 相互〔正反〕 反复选择 | |||
| 相互反复选择 | |||
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recurrent reciprocal selection : 6 phrases in 4 subjects |
| Agriculture | 1 |
| Animal husbandry | 3 |
| Genetics | 1 |
| Technology | 1 |
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