诱导地

A highly reliable and accurate on-board control system design scheme is presented for the orbit maneuvers of CE-1 spacecraft during its cislunar transfer phase.

文章阐述了嫦娥一号卫星地月转移阶段(从星箭分离到进入使命轨道)的高可靠、高精度自主变轨控制方案，介绍了飞行轨道、轨控策略及控制参数优化、星上自主变轨控制的系统设计和相关参数的地面标定等，给出了在轨飞行试验的验证结果。

The determination of the relationship between statical resolution of aerial film and exposure by improved Chinese-built 9 w microdensitometer was introduced in this paper.

本文介绍利用改进后的国产9 w测微密度仪，测定航空软片静态分解力与曝光量的关系。