What's the structure of this sentence ?

When the spaceship was doing its secenth circle状语
Yang Liwei 主语
showed谓语
the flags China and the United Nations宾语
expressing the wishes of the Chinese people to explore and use speace peacefully."宾语补语

同意一楼。

When the spaceship was doing its seventh circle,Yang Liwei showed the flags China and the United Nations,expressing the wishes of the Chinese people to explore and use spece peacefully.

当太空船运行到第七圈的时候，杨利伟展示了中国和联合国国旗，以次表达了中国人民和平开发和用空间的愿望。

When the spaceship was doing its secenth circle这是条件句
Yang Liwei showed the flags China and the United Nations这是主句
expressing the wishes of the Chinese people to explore and use speace peacefully伴随状语，表示目的和结果