地面亮度温度的测量值随观测天顶角、方位角和太阳位置而改变。
As expected, the measured brightness temperatures change with view zenith angle, view azimuth angle, and the Sun position.
在一次测量过程中，两组测量单元可以测出各自所在位置的井斜角和相对扭转角，由此可计算出两个单元之间的方位角变化。
The azimuth Angle change between the two units can be calculated by once operation according to the deviation angles and relative torsion angles measured with the units at each point.
通过确定球心位置，对炮身管的高低角、方位角进行计算，从而检测火炮调炮的性能。
By the sphere centre, elevation Angle and azimuth Angle of the gun barrel are obtained.
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