The four main levels of our classification are protein class (c), architecture (a), topology (t) and homologous superfamily (h).

我们的分类中的四个主要层次是蛋白质类(C)，结构(A)，拓扑结构(T)和同源超家族(H)。

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Zhang X. M. , C. H. Shi, J. G. Wu, G. L. Bao, S. H. Ye, T. Katsura, The relationship between essential amino acid contents of hybridized combinations and their parents.

张小明、石春海、吴建国、鲍根良、叶胜海和富田桂，杂交稻米必需氨基酸含量与亲本的关系。

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Shi C. H. , R. W. Du, D. W. Lin, W. G. Zhang and Z. T. Shen, A new indica rice variety Zhe-Nong 8010 with disease resistance, high quality and yield.

石春海、杜如伟、林大为、章旺根和申宗坦，优质高产抗病早籼品种浙农8010的选育及利用。

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So, why don't you go ahead and tell me, keeping that in mind, which atom in terms of h c or n would you expect to be in the center of hydrogen cyanide?

那么，请大家来告诉我，并且记住它，你认为氢，碳和氮中哪个原子,应该在氰化氢的中间呢？

麻省理工公开课 - 化学原理课程节选

Can you spell h-y-p-o-c-r-i-t-e?

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