Objective To study the three dimensional characteristics of heart sound in children with myocarditis.
目的：通过心音三维分析了解小儿心肌炎的心音特征。
The characteristics of three dimensional astigmatic beams were discussed by using their second order intensity moments.
采用光束的二阶强度矩的方法讨论三维像散光束的光束特性。
Objective To study neonatal morphological characteristics of cranial base with clefts by three dimensional structures.
目的在唇腭裂新生儿三维重建体上研究颅基底形态结构特征。
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