同时，通过对比研究证明，时间也会对流利度产生影响。
Meanwhile, a contrastive study proves that time also plays an important role in fluency.
本文通过对比研究，发现土地管理空间概念的领域知识，包含几何知识。
In this paper, comparative studies showed that domain knowledge of land management spatial concept covers knowledge of geometry.
通过对比研究了合金元素锌和镍对铜基粉末冶金刹车材料性能的影响规律。
The effects of alloy elements (Zn, Ni) on the properties of copper-based brake materials were investigated.
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