We put stress upon investigating the effect of changing lift drag ratio and reentry Angle on reentry orbit.

着重研究了改变升阻比和再入角对再入轨道的影响。

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Then the constitution and function of our video OTF instrument are specified. Its optical layout design is put stress upon.

然后说明视频式光学传递函数测量仪组成和功能，重点给出其光学系统的设计。

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Then the constitution and function of our video OTF instrument are specified. Its optical layout design is put stress upon.

然后说明视频式光学传递函数测量仪组成和功能，重点给出其光学系统的设计。

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