descent propulsion system
[新英汉石油技术词典]
descent propulsion system降落推进系统
是什么意思,descent propulsion system的解释,descent propulsion system的翻译
[石油英汉词典] descent propulsion system
descent propulsion system
[新英汉石油技术词典]
descent propulsion system是什么意思,descent propulsion system的解释,descent propulsion system的翻译
[石油英汉词典] descent propulsion system