英语词典
Methods Applied pit and fissure sealant on hemi side the first permanent teeth from 100 6 year old primary student, called experiment group;
方法对100名6岁小学生的单侧上下颌第一恒磨牙进行窝沟封闭,设为实验组;
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A statistical analysis of pit and fissure sealing of the teeth in students of affiliated primary and middle schools, guangxi Medical University
广西医科大学附属中小学生窝沟封闭统计分析
torus (pl. tori) a disk-shaped structure formed from lignified primary cell-wall material on the middle lamella of a bordered pit.
位于具缘纹孔中间层,由木质化的初生壁形成的一个盘状结构。
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