经过推理，可以得出这两个平行四边形是相似形。
After reasoning, one can conclude that these two parallelograms are similar figures.
文章介绍了酞菁、几种类酞菁化合物的结构、性质、合成及其应用，比较了它们之间的相似形。
The phthalocyanines and several phthalocyanine-like compounds are introduced. Relations of their structures, properties, synthesis and applications are discussed .
分析表明，道路表面具有不规则性和统计自相似性，即每一部分都可视为整体缩小尺度之后的相似形。
The results showed that the road surface presents irregular performance and statistical self similarity, which means that each portion can be considered as a reduced scale image of the whole.
分析表明，道路表面具有不规则性和统计自相似性，即每一部分都可视为整体缩小尺度之后的相似形。
The results showed that the road surface presents irregular performance and statistical self similarity, which means that each portion can be considered as a reduced scale image of the whole.
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