“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	open-air telescope open air theater open airway open-and-closed set open-and-closed subset open and cut method open arc open arc crater open architecture framework open architecture framework, OAF Open Archival Information System open archival shelves open archives initiative protocol for metadata harvesting open area-test site open ball open base open bibliographic data open bite open boundary condition Open Brethren open caisson foundation open calibration field open canal open card sorting opencast mining plan

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。