The v-2 pushed the two-stage rocket to an altitude of 20 miles and then broke away . V2将第二级火箭推到20英里的高度,然后脱落。
2.
The v - 2 pushed the two - stage rocket to an altitude of 20 miles and then broke away V ? 2将第二级火箭推到20英里的高度,然后脱落。
3.
The v - 2 pushed the two - stage rocket to an altitude of 20 miles and then broke away V 2将第二级火箭推到20英里的高度,然后脱落。
4.
The fairing offered heat and aerodynamic protection for the spacecraft during the initial phase and was no longer required as the second stage had left the dense atmosphere 此时,第二级火箭已飞出稠密大气层,飞船不再需要整流罩的保护了。