carrierrocket

常见例句

• This paPer analyzes the environment both at home and abroad of the carrierrocket engine working process research of The l lth Research Institute of ChinaAerospace Science & Technology Corporation.
  论文分析了中国航天科技集团公司第十一研究所在火箭发动机工作过程研究领域面临的国际、国内环境；
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