半厚 meaning in English
half thickness
half-thickness
Examples
- Another choice for solving mucogingival problems 15 the use of a modified combination of three known techniques : the split thickness flap ( apically replaced ) , vestibular extension and intemal linear periosteal fenestration
摘要本改良法乃是综合齿龈半厚瓣根尖移位、口腔前庭加宽和骨膜线状开窗等已知的三种的方法于一次齿龈粘膜手术之同时进行的术式。 - Several influence factors to result plasma drift in hainan were analyzed . in this paper the characteristics of ionospheric parameters variation were analyzed systematically and some new results in storm - time such as seasonal behaviors were obtained ; it is the first time to investigate the ionospheric drift behavior in hainan and some new results was obtained , the relationships between each two plasma drift velocity components in storm time in hainan were found and the electric filed variation in hainan ionosphere also was obtained ; the results also show that there are big differences of the ionosphere parameters bo and bl obtained from the data with that obtained from the iri - 2001 applied for hainan ; a new phenomena was found during a strong magnetic storm , that a layer with very strong electron density and density grad was found during the recovery phase of the storm , its horizontal scale is beyond 100km and temporal scale is about 2 hours , this phenomena repeated 3 times continuously . a type of negative disturbance in high and low latitude but positive disturbance in east - asia also has been found
本文较为系统地给出了海南地区电离层的参数变化特征，特别是得到了一些暴时与以往不同的季节特性；第一次给出了海南地区的电离层等离子体漂移特征，发现等离子体漂移暴时扰动在三个方向上有内在的联系，得到了电场变化曲线；研究结果还表明海南电离层的半厚指数和形状参数等与国际参考电离层iri - 2001存在很大差别；通过对强磁扰动事件期间的参数变化特性分析发现，在磁暴恢复相期间海南地区电离层底部存在一个电子密度非常大的高密度区，高密度区底部电子密度梯度随高度急剧增加，该区域的水平尺度可达100公里以上时间尺度约为2小时，连续出现过三次，这是一个在海南从来未发现的新现象；研究还发现了暴时东亚地区电离层扰动会出现高低纬负相而中纬正相的现象。