[航]?单级火箭
单级火箭 one-stage rocket; single stage rocket; single stage vehicle; single-stage rocket; singlestage vehicle 第二级火箭 second-stage rocket .
单级火箭 ; 单节火箭
单节探空火箭
单级入轨火箭
Pyongyang used missile technologies passed on by the former Soviet Union during the Cold War to build a single-stage rocket, the Nodong, as well as the longer-range Taepodong missile system.
WSJ: Tests Point to Spread of Weapons Trade
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。