The dynamic equation of spacecraft with extensional flexible appendages is derived. 推導了帶伸展柔性附件航天器的時變係數動力學方程。
The physical foaming process of foamed Aluminum is described, and the dynamics equation is gained and simplified. 摘要描述了泡沫鋁發泡的物理過程,建立起了動力學方程,並對動力學方程進行了簡化。