“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	many-one many-one complete many-one correspondence many-one degree many one reducibility many-one reducibility many-one reducible set many-one reducible to many-particle system many-person game many photon process many-photon process many-placed operation many-placed predicate manyseeded euptelea many-sheeted surface many-sorted algebra many-sorted language many-sorted logical calculus many sorted predicate calculus many-sorted predicate calculus many-stage many-to-many function many-to-many mapping many-to-one

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。