Thermal control material OSR's have to meet a variety of ground and space environments during ground storage and space flight of space vehicles.

航天器在地面待发射期间加空间实际飞行过程中，热控元件OSR要遇到各种地面和空间环境。

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The thermal stage separation being provided with improving and enhancing stability and orbit precision for flight was abroad adopted in solid-propellant ballistic missile.

级间热分离具有改善和提高继续飞行级的稳定性和入轨精度而被固体弹道式导弹广泛采用。

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According to flight feature and transitional thermal load value, scheme of temperature adjusting system of electronic equipment cabin was presented.

根据高空高速飞行特点及瞬态热载荷值，确定仪器设备舱调温系统方案。

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Technologies being tested in the program include advanced guidance, navigation and control, thermal protection systems, avionics, high temperature structures and seals, conformal reusable insulation, lightweight electromechanical flight systems, and autonomous orbital flight, reentry and landing.

ENGADGET: USAF relaunches its first X-37B on a slightly less mysterious spaceflight