When the aperture diameter of an optical system is fixed with the same orbit height, the resolution of ground objects can be improved by increasing the focal length.

当光学系统口径一定时，在相同的轨道高度条件下，增大焦距可以提高地面分辨率，增大系统的视场角可以扩大对地面的覆盖宽度。

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According to the target spacecraft's orbit height and the chaser spacecraft's orbit height, the design method of the target's initial phase for the rendezvous orbit was presented.

根据目标飞行器轨道高度和追踪飞行器入轨轨道高度，给出了目标飞行器交会对接轨道初始相位的设计方法。

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The TV report said the Rasad satellite, developed by Iran's aerospace agency, weighs 15.3kg and has been designed to orbit the Earth 15 times a day at a height of 160 miles.

电视报道说“拉萨德”卫星，由伊朗航空航天局研发，重15.3公斤，每天在160公里的高空绕地球15次

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Gagarin went into orbit at the height of the Cold War.

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Reportedly the result of a conversation between Mittal and London Mayor Boris Johnson at Davos, the Orbit surpasses both in Big Ben and the Statue of Liberty in height.

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