“一次变分方程”的概念、定义、翻译、参考文献-科学参考

单词	一次变分方程
释义	一次变分方程 equation of first variation
随便看	exitance exit angle exit aperture exit area exit area of nozzle exit area ratio exit beam exit beam deflection exit blade angle exit bridle exit button exit button relay exit cone exit corridor exit designator exit diameter exit direction exit dose exite exit end exit facet exit flue exit gantry exit gap exit gas

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