“grassland ecological security”的概念、定义、翻译、参考文献-科学参考

单词	grassland ecological security
释义	grassland ecological security Encyclopedia 农学草地生态安全释 grassland ecological security草地生态安全草地保持健康的结构与功能的状态。
随便看	partial derivative partial derivative of higher order partial derivative relations partial derivatives of higher orders partial derived functor partial diallel mating design partial difference partial difference equation partial difference quotient partial differential partial differential coefficient partial differential-difference equation partial differential equation partial-differential-equation design method partial differential equation method partial differential equation of elliptic type partial differential equation of first order partial differential equation of higher order partial differential equation of hyperbolic type partial differential equation of Kovalevskaya type partial differential equation of mixed type partial differential equation of parabolic type partial differential equation of second order partial differential equation on a manifold partial differential equation surfaces

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