“永冻层次”的概念、定义、翻译、参考文献-科学参考

单词	永冻层次
释义	永冻层次 Encyclopedia 农学永冻层次释 permafrost layer永冻层次土壤圈中持续多年常年土温≤0℃、处于冻结状态的层次。包括土壤或岩石，以及冰或有机物质。
随便看	infinitesimal of higher order infinitesimal of lower order infinitesimal of the same order infinitesimal operator infinitesimal real number infinitesimal rigidity infinitesimal rotation infinitesimal sequence infinitesimal stability infinitesimal strain infinitesimal structure infinitesimal symmetry infinitesimal Torelli problem infinitesimal transfer infinitesimal transformation infinitesimal transformation group infinitesimal translation infinitesimal unitary transformation infinitesimal variance infinitesimal variation infinitesimal wedge infinite solid infinite space infinite speed of propagation [infinite] square well

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