Suffusive retinal nerve fibre layer defect(RNFLD) was showed in 18 eyes(47.37%).
弥漫性视神经纤维层缺损18眼(47.37%);
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An introduction is given to strengthening of defect beam of a super large bridge. Carbon fibre textile was applied to the bottom face of beam with WN glue to cure the cracks of structure.