““半人马座”系列上面级”的概念、定义、翻译、参考文献-科学参考

单词	“半人马座”系列上面级
释义	“半人马座”系列上面级 Encyclopedia 工学〔空间运输器分类〕释 Centaur family upper stage“半人马座”系列上面级美国于20世纪60年代初研制成功的，世界上第一种以液氧、液氢为推进剂的高性能上面级。
随便看	countable transitive model countable union countable-valued logic countable weight countably additive countably additive algebra countably additive class countably additive family countably additive function countably additive measure countably compact countably compact set countably compact space countably continuous operator countably equivalent sets countably generated module countably Hilbertian space countably infinite countably infinite set countably infinite system countably many countably multiplicative class countably normed space countably paracompact space countably semi-additive function

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。