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| contemporary comparison (一种后裔鉴定的方法，将种公畜的女儿与其他同群、同年龄母畜的生产性能加以比较，以判断公畜的遗传性能) | |||
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| contemporary comparison | |||
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同 期 比较 : 6 phrases in 4 subjects |
| Agriculture | 1 |
| Animal husbandry | 3 |
| General | 1 |
| Technology | 1 |
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