1·Chronic pyelonephritis sees a side kidney increase, another side kidney is contractible.
慢性肾盂肾炎可见一侧肾脏增大，另一侧肾脏缩小。
1·Using this result we prove in this paper that every contractible polyhedron is an absolute retract.
借助于这一结果，本文证明了每一个可缩多面体均是个绝对收缩核。
2·In this paper a concept of contractible closed set is introduced in H-spaceand a generalized KKM theorem (Theorem 1)which is parallel with C-KKM theorem isobtained.
在H-空间中引入了可缩闭集的概念，得到了一个与C-KKM定理相平行的广义KKM定理。