“permafrost layer”的概念、定义、翻译、参考文献-科学参考

单词	permafrost layer
释义	permafrost layer 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。 Astronomy permafrost layer永冻层
随便看	definite inflorescence definite integral definite kernel definite linear form definitely divergent sequence definiteness definite operator definite problem definite quadratic form definite restriction definite sign definite S integral definite S-integral definite subspace definite - time definite time definition definitional domain definitional equivalence definitional identity definitionally equal definitional occurrence definition by abstraction definition by cases definition by extension

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。