...垂直并且平分一条线段的直线称为这条线段的垂直平分线,轴对称是指（两个）图形、正方形,这条直线叫做对称轴(axis of symmetric),我们也说这个图形关于这条直线的轴对称.对称轴.
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symmetric axis of a figure 图形的对称轴
By properly setting the coordinate axis, the discrete data of a symmetric coupler curve are made to satisfy the conjugate symmetry.
通过合理地选择坐标轴，使对称连杆曲线的离散数据满足共轭对称性。
Many acoustic drivers are substantially symmetric about the axis of motion 22.
很多声学驱动器围绕运动轴线22基本对称。
Sigma symmetry of this molecular orbital, specifically that it's cylindrically symmetric about the bond axis.
告诉我们关于，And，the，sigma，tells，us，something，about，the,分子轨道对称性的信息，特别是它关于键轴是圆柱对称的。
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