“上面级”的概念、定义、翻译、参考文献-科学参考

单词	上面级
释义	上面级 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	correcting background with nonabsorption line correcting code correcting errors correcting field correcting lens correcting plate Correcting wrong Chinese characters correction correctional correction algorithm correctional library correctional program for offender correction coefficient correction equation correction factor correction for continuity correction for deflection of the vertical correction for grouping correction for normal gradient correction for radio wave propagation of time signal correction for skew normal correction for transducer draft correction from normal section to geodesic correction method of control system correction of accounting errors

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。