“permafrost”的概念、定义、翻译、参考文献-科学参考

单词	permafrost
释义	permafrost [`pǝr·mǝ´frȯst] ^GEOLOGY Perennially frozen ground, occurring wherever the temperature remains below 0°C for several years, whether the ground is actually consolidated by ice or not and regardless of the nature of the rock and soil particles of which the earth is composed.
随便看	convergence limit convergence line convergence magnet convergence of meridians convergence pressure convergence ratio convergence zone convergent convergent die convergent-divergent nozzle convergent integral convergent precipitation convergent sequence convergent series convergent zone paths converging lens converging mirror Conversational Algebraic Language conversational compiler conversational mode conversational processing conversational time-sharing converse conversion conversion angle

科学参考收录了103327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。