“Proton D family upper stage”的概念、定义、翻译、参考文献-科学参考

单词	Proton D family upper stage
释义	Proton D family upper stage Encyclopedia 工学〔运载火箭分类〕释 Proton D family upper stage“质子”号D系列上面级俄罗斯研制的一个系列上面级，“质子”号D系列上面级与“质子”号运载火箭组合用于执行卫星发射任务。
随便看	register register allocation register coloring registered architect registered bill registered capital system registered constructor registered cost engineer registered deed registered dietitian，RD Registered Environmental Protection Engineer registered letter registered nurse registered office registered permanent residence registered permanent residence transfer registered residence registered residence system registered safety engineer's office registered sea　salt producers registered structural engineer registered system for sports referee registered unemployment rate registered urban and rural planner registered yet unassigned metropolitan graduate

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。