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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紫的优势象,结果,分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?

为什么相同两个物种之结果往往会有如此大差？

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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.

由惠产生物通常彼此非常相似， 来自惠物也是如此。

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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.

所谓两个物种之相， 我指是母驴首先与种马，然后母马与公驴情况：这两个物种可以说是相.

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