Objective To evaluate the effect of U-type colonic loop substitute for colonic pouch on defecation function after anterior resection for distal rectal cancer.
目的评价低位直肠癌前切除术后应用U型结肠袢成形代储袋对术后排便功能的影响。
2
During rail laying, the loop part of the U-shaped bent loop is knocked bent to hold down the foot of the rail and in this way, the sleeper and the rail are connected together.
铺轨时，“U”形弯环的环部被砸弯，压住钢轨的底脚，即可将轨枕与钢轨联结在一起。
3
When the U-shaped bent loop is broken, the nuts under the sleeper can be screwed off and a new U-shaped bent loop can be assembled for restoring use.