zero-axis symmetry 零轴对称
circular ring of axis symmetry 轴对称圆环
symmetry axis [数] 对称轴 ; 对称轴线
axis-symmetry model 三维轴对称模型
axis-symmetry field 轴对称流场
axis symmetry field 轴对称场
axis symmetry nozzle 轴对称喷管
axis symmetry method 轴对称图形法
By using the method of boundary layer, it discusses the axis symmetry problems of the combines rotary shell when its first curvature is in constant.
利用边界层方法，讨论了第一主曲率为常数的组合旋转壳的轴对称问题。
The flexural vibration of a circular ring that is of axis symmetry is analyzed and calculated, the solid frequency expression of the flexural vibration is obtained.
对一类轴对称圆环的面内弯曲振动进行了分析计算，给出了圆环面内弯曲振动固有频率表达式。
The thrust characteristics of axis symmetry nozzle were mainly measured in test. For the nozzle having a vectoring angle, the deflection efficiency was measured too.
对于轴对称喷管模型主要进行了喷管的推力特性测量，对于实施矢量偏转后的喷管模型除了给出了喷管推力特性外，还给出了喷管的偏转效率。
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