在实际工程应用时应根据不同的地面覆盖宽度的需求确定光学系统视场角，然后根据不同的视场角选定能满足这个视场角要求并尺寸最小的光学系统结构形式。
In the practical applications, according to the ground swath width determine the FOV, then choice the optical system configuration which can satisfy the needed FOV and small dimension.
“绿色南京”工程自2002年九月正式实施以来取得了很大进展，全市森林覆盖率、绿化覆盖率和人均公共绿地面积等都大幅上扬。
Project "green Nanjing" has made great progress after implementation in September, 2002, with great increase in coverage of forest and green, and area of common green land average per person.
“绿色南京”工程自2002年九月正式实施以来取得了很大进展，全市森林覆盖率、绿化覆盖率和人均公共绿地面积等都大幅上扬。
Project "green Nanjing" has made great progress after implementation in September, 2002, with great increase in coverage of forest and green, and area of common green land average per person.
应用推荐