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。
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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