“down-ladder”的概念、定义、翻译、参考文献-科学参考

单词	down-ladder
释义	down-ladder Mathematics down-ladder下降算子 step-down operator = down-ladder下降算子
随便看	additive persistence additive polynomial additive primaries additive prime number theory additive problem additive process additive property additive reduction additive relation additive ring additive scheme additives compatibility additive selection additive semigroup additive set-function additive space additive stochastic process additive structure additive subgroup additive/subtractive hybrid manufacturing technology additive synthesis additive system additive system of photographic exposure additive term additive theory

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