adj.可收（压）缩的

The empty set is contractible, meaning it can be continuously deformed to a single point.
空集是可收缩的，意味着它可以连续地变形到一个点。
A solid sphere is not contractible to a point, unlike a hollow sphere which is.
实心球不能收缩到一点，而空心球则可以。
In topology, a disk is considered contractible because it can be shrunk to its center.
在拓扑学中，圆盘被认为是可收缩的，因为它可以收缩到它的中心点。
A contractible space has the homotopy type of a point.
一个可收缩的空间在同伦型上等价于一个点。
The figure eight space is not contractible; it has nontrivial fundamental group.
“8”字空间不是可收缩的；它有一个非平凡的基本群。
Contractible complexes in algebraic topology simplify many computations.
代数拓扑中的可收缩复形简化了许多计算。
A cube can be continuously deformed into a ball, showing it's also contractible.
立方体可以连续变形为球体，表明它也是可收缩的。
The concept of contractibility helps distinguish spaces with different topological properties.
可收缩性这一概念有助于区分具有不同拓扑性质的空间。
Even a very twisted and convoluted path in space can become a point if the space is contractible.
即使在空间中路径非常扭曲和复杂，如果该空间是可收缩的，它也可以变为一个点。
Contractibility is a key property in understanding fixed point theory in mathematics.
可收缩性是理解数学中不动点理论的关键性质。