“月球上升器”的概念、定义、翻译、参考文献-科学参考

单词	月球上升器
释义	月球上升器 Encyclopedia 工学月球探测器释 lunar ascender月球上升器利用自身动力从月面起飞进入月球轨道的月球探测器或独立舱段。
随便看	non negative characteristic form non-negative characteristic form nonnegative characteristic form nonnegative combination nonnegative definite nonnegative definite kernel nonnegative definite matrix nonnegative definiteness nonnegative definite quadratic estimate non-negative definite quadratic estimator nonnegative divisor nonnegative element nonnegative function nonnegative integer nonnegative integral kernel nonnegative manifold nonnegative matrix non-negative matrix factorization nonnegative measure nonnegative number nonnegative operator nonnegative orthant nonnegative partial sum nonnegative quadratic form nonnegative semi-definite matrix

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