目的研究视神经牵拉伤后不同时期神经组织超微结构的变化及相应的电生理表现。
Objective To investigate the ultrastructural and the corresponding electrophysiological changes after stretch injury of the optic nerve at different stages.
目的：探讨骺板胶原纤维受到牵拉后其胶原纤维超微构筑的变化。
Objective: To investigate changes of micro framework of the collagen fibers when the growth plate was tensed.
方法将乙状结肠及直肠牵拉有一定张力后，与腹膜缝合固定。
Methods After pulling sigmoid colon and rectum to some tension, sewing peritonaeum with them and then making them fixed.
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