The earth turns (ie rotates) on its axis once every 24 hours.
地球每24小时自转一圈.
A wheel revolves round/on its axis.
轮子是绕轴旋转的.
In computer graphics, turning all or part of a display image180 degrees about an axis in the plane of the display surface.
在计算机制图技术中,显示图象的全部或一部分对显示面所在平面中某个轴线翻转180度的处理方法。