英语语法分析

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。