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 .
本文对比了苏联和美国的航天政策，讨论了它们对两国争霸结果的影响。
The influence of the space policies of Soviet Union and United States on the result of contending for hegemony is discussed in this paper .
苏联航天