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1. The covering homotopy of the surface is crucial for the stability of the structure.
表面覆盖同调对于结构的稳定至关重要。
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2. In this study, we explore the covering homotopy of a certain class of functions.
在这项研究中，我们探索了某一类函数的覆盖同调。
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3. The covering homotopy theory has been applied to various fields, such as topology and algebraic geometry.
覆盖同调理论已被应用于拓扑学和代数几何等领域。