“permafrost degradation”的概念、定义、翻译、参考文献-科学参考

单词	permafrost degradation
释义	permafrost degradation Encyclopedia 工学冰冻圈变化释 permafrost degradation冻土变化冻土指温度低于0℃并含有冰的土或岩层。全球不同地区冻土在面积、温度、活动层厚度等方面均有一定差异。
随便看	operative category operative mathematics operative temperature *-operator operator operator algebra operator algebra method operator algorithm operator analysis operator approximation theory operator automorphism operator bounded below operator calculus operator compact implicit scheme operator-convex operator cosine function operator-difference operator-differential operator-differential equation operator domain operator endomorphism operator equation operator ergodic theorem operator extension problem operator function

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