包含 reciprocal cross 的英语例句 | 欧路词典例句词典

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Nuclear magnetic resonance techniques are used to determine the national aleutric acid preferential conformation. The results show that the dithionic hydroxyl radicals are in reciprocal cross bearing.

采用核磁共振谱法测定了国产酸的优势象,结果表,子中连二羟基处于反交叉位。

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原声例句

物种起源

Why should there often be so great a difference in the result of a reciprocal cross between the same two species?

为什么相同的两个物种之间的互会有如此大的差？

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物种起源

Hybrid plants produced from a reciprocal cross generally resemble each other closely, and so it is with mongrel plants from a reciprocal cross.

由互惠杂的杂植物通常彼此非常相似，来自互惠杂的植物也是如此。

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物种起源

By a reciprocal cross between two species, I mean the case, for instance, of a female-ass being first crossed by a stallion, and then a mare by a male-ass: these two species may then be said to have been reciprocally crossed.

所谓两个物种之间的相互杂，我指的是母驴首先与种马杂，然后母马与公驴杂的情况：这两个物种可以说是相互杂的.

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3G, 401(K), a,