报告4~6岁学龄前儿童504人眼外形正常值的测量。结果:睑裂高度8.53±0.11mm,睑裂长度24.66±0.21mm,外眦距离81.77±0.36mm,内眦距离32.14±0.28mm,角膜纵经9.96±0.05mm,角膜横径10.96±0.05mm,瞳孔距离52.51±0.27mm,眶外缘距离92.02±0.34mm。
Report of 4 ~ 6 years Preschool
This article presents a theory about the growth mechanism of bubble-screw dislocation of nodular graphite. Normally speaking, the crystallizing procedure of mos