“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	Mount Bo Scenic and Historic Area Mount Cangyan Scenic and Historic Area Mount Cook Mount Cook National Park Mount Dahong Scenic and Historic Area Mount Danxia Scenic and Historic Area Mount Diablotin Mount Dragon and Tiger Scenic and Historic Area Mounted Courier mounted instrument technology mounted plough mounted standard instrument mounted wheel Mount Emei Mount Emei Scenic and Historic Area Mount Emei Scenic Area,including Leshan Giant Buddha Scenic Area World Culture and Natural Heritage Mount Fengdong Mount Flower Scenic and Historic Area Mount Fozi Scenic and Historic Area Mount Gambier Mount Gimie Mount Graham International Observatory Mount Guangwu-Nuoshui River Scenic and Historic Area Mount Guanzhai Scenic and Historic Area Mount Heha

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。