The performance of the space optical system is determining the performance of space telescope, reconnaissance satellite and weapon system to a great extent.

空间光学系统的性能在很大程度上决定着太空望远镜、侦察卫星和武器系统的性能。

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The SR-71 has proven its value as a complementary system to U.S. space-based reconnaissance assets during the prolonged period from 1985 to 1987 when the United States was unable to place new satellites in orbit.

CENTERFORSECURITYPOLICY: Center for Security Policy | Congress Must Preserve A Vital Strategic Reconnaissance Capability �� The SR-71