““质子”号D系列上面级”的概念、定义、翻译、参考文献-科学参考

单词	“质子”号D系列上面级
释义	“质子”号D系列上面级 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	cycle matroid cycle of a chain complex cycle of a complex cycle of a diffeomorphism cycle of a manifold cycle of a matroid cycle of index zero cycle of length n cycle of numbers cycle of seminiferous epithelium cycle of soil water in field cycle of the first kind cycle of the second kind cycle of the sun Cycle of train diagram cycle performance evaluation cycle permutation cycle process cycler cycle rank cycle representation cycle sequencing cycle slip detection cycle slip repair cycle space

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