The orientation of the planet's orbit is changing continuously.
该行星轨道的方向不断变化。
In fact, this is what almost happens, except that the nodes of the lunar orbit are gradually shifting their orientation in space.
实际上差不多就是这样发生的，只不过月球轨道交点的空间方位有渐移运动。
The inner orientation elements of the three-line-array CCD camera are affected by the change of the circumstance during the satellites launching and flying on the orbit.
卫星发射及在轨飞行中，环境变化会影响三线阵c CD相机的内方位元素。
For planet Earth there are about two seasons each year during which the orientation of the Moon's orbit is favorable for solar and lunar eclipses.
对地球而言，每年基本上有两个日月的季节，该时，月球轨道的指向有利于日食或月食的发生。
For planet Earth there are about two seasons each year during which the orientation of the Moon's orbit is favorable for solar and lunar eclipses.
对地球而言，每年基本上有两个日月的季节，该时，月球轨道的指向有利于日食或月食的发生。
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