“upper-stage”的概念、定义、翻译、参考文献-科学参考

单词	upper-stage
释义	upper-stage Encyclopedia 工学〔空间运输器分类〕释 upper-stage上面级在运载火箭上面增加的、相对独立的一级（或多级），由运载火箭发射进入准地球轨道或地球轨道，自主完成轨道机动、有效载荷分离与部署，将有效载荷送入预定工作轨道或预定空间位置的空间运输器。
随便看	flooding therapy flood insurance flood investigation floodlight floodlighting flood mark flood monitoring by remote sensing flood of Haihe River in 1939 flood of Huanghe-huaihe-haihe-changjiang Four Rivers in 1662 flood of middle reaches of the Yellow River in 1843 flood of Yangtze River and Huaihe River in 1931 flood of Yangtze River in 1935 flood period flood plain floodplain flood plainhirst flood plain subfacies flood prevention flood protection area of urban flood protection criteria for hydraulic structures flood pulse concept flood risk flood risk management flood risk maps flood routing

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。