“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	regular polychoron regular polygon regular polygon division by diagonals regular polyhedral angle regular polyhedral group regular polyhedron regular polyhedron group regular polymer regular polytope regular position regular power series regular precession regular premium regular prime regular prime number regular prism regular problem regular process regular product regular projective transformation regular pyramid regular quadratic form regular quadratic space regular quadric hypersurface regular quotient object

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。