polar axis meaning in English
极轴（天文）
极坐标轴
Examples
- Because of its oblate shape, the moment of inertia of the earth is a maximum about the polar axis and minimum about an axis in the equatorial plane .
由于地球是扁球体，绕极轴惯量矩最大，而绕在赤道面内的轴的惯量矩最小。 - The alignment of the polar axis and the monitoring of the guiding process require absolute accuracy
极轴的摆放及追踪过程必须十分准确。 - < uk > from the standpoint of the gyrocompass the earth appears to be rotating about an axis making an angle with the true polar axis . < / uk >
< uk >从陀螺罗盘的位置观察地球，好象地球是绕着偏离其极轴角的一个轴在移动。 < / uk > - The polar axis should point to the celestial pole around which all stars seem to rotate and the elevation of the axis should be the same as the latitude of the location
赤道仪的极轴必须对准星空的转动中心，而仰角则相等于拍摄地点的纬度。