This means that near the north or South Pole you are actually closer to the centre of the earth-where the Angle is being measured from-than you would be at the equator.
这就意味着，如果你身处南极或北极附近，你离地心的距离就比在赤道更近一些——纬度的测量就与地心有关。
2
Roll centre height determined by strut axis and lower arm Angle.
侧倾中心顶点由支柱和下臂角决定。
3
Screen Angle indicator: a protractor with many co - centre circles.