求翻译：从字典 中抽取两部分原子进行研究，如图5.4(a1)和(b1)，分别取每一个原子的某个横切面，对其进行一维傅里叶变换得到它们相应的频谱图，如图5.4(a2) ，(b2)所示，我们发现伪影原子的频率大部分集中在频带的中间部位，而组织结构原子的频率大部分集中在频带的低频和高频部分。因此，我们可以根据原子的频率特征把字典原子分为伪影原子子字典 和结构原子子字典 ，即当一个原子某个横切面的低频和高频相应的频谱的和大于其中间频率的频谱的和时，是什么意思？

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From the dictionary is drawn from the two parts of the atomic research, as shown and (b1), respectively, 5.4(a1) from every atom of a broad cross-section of the community and to a one-dimensional Fourier transform their corresponding spectrum diagram as figure, as shown in (b2), 5.4(a2), we found th

从字典 中抽取两部分原子进行研究，如图5.4(a1)和(b1)，分别取每一个原子的某个横切面，对其进行一维傅里叶变换得到它们相应的频谱图，如图5.4(a2) ，(b2)所示，我们发现伪影原子的频率大部分集中在频带的中间部位，而组织结构原子的频率大部分集中在频带的低频和高频部分。Therefore, we may divide into according to the atomic frequency characteristic the dictionary atom the false shade atom sub-dictionary and the structure atom sub

From dictionary in the extraction two part Atomic for research, as Figure 5.4 (A1) and (B1), respectively take each a Atomic of a cross-section, on its for a weifuli leaves transform get they corresponding of spectrum figure, as Figure 5.4 (A2), (B2) by shows, we found pseudo shadow Atomic of freque

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