左形

死亡曲线有右纠凸形、对角线形和左斜凹形3种形状。

The dead curves have three shapes : right side convex , diagonal line and left side concave .

正常成人左房构形的超声新表达

Novel Expressions to Left Atrial Geometry in Normal Healthy Adults with Echocardiography

可调节三维肘形形状（左上角形）。

Adjustable 3-D elbow shape with upper-left corner .

结论左房构形及功能变化是高血压病心脏早期损害的重要指标。

Conclusion The changes of left atrial geometry and function are major index to early heart impairment with hypertension .

目的：探索左房构形新的超声表达方法和指标，排除或缩小年龄、性别、体重和身高等因素的影响，更准确地反映左房构形及其变化。

Objective : To explore the new expression to the size of the left atrium in order to remove or decrease the influence of age , gender , height and weight on it .

左、右梅花形凸轮在传动轴圆周方向上错位配置安装；

The quincunx cams are installed in a staggered manner along the circular direction of the transmission shaft .

研究了下侧Dirichlet级数和下侧随机Dirichlet级数在左半平面，任何左半带形以及左半水平直线的增长性，型之间的关系。

Study the relations of the growth and type on left half-plane or left half-strip or left half-horizontal between the lower side Dirichlet series and the lower side random Dirichlet series .