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。

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。

An edge of a 6 connected graph is said to be 6-contractible if its contraction results still in a 6 connected graph.

如果6连通图的一条边收缩后使得所得到的图仍是6连通，则这条边称为6可收缩边。

This paper presents a survey on the properties and distributions of contractible edges and removable edges in 3 connected graphs.

综述了3连通图中可缩边和可去边的性质以及它们在图中的分布情形。

After cold war ends, as dimensions of super nucleus Arsenal contractible, the expert thinks "doomsday clock" lost revelatory sense.

冷战结束后，随着超级核武库规模的缩小，有专家认为“末日钟”失去了启示意义。