质子号运载火箭是苏联专为航天发射任务设计的大型运载火箭。
Proton is a large launch vehicle especially designed by USSR for launch missions .
文章对目前活跃在商业发射市场中的质子号运载火箭进行了介绍。
In this paper , Proton launch vehicles currently applied in commercial launch market are presented .
质子号运载火箭