?永冻地
... detachment of frozen ground 不衔接多年冻土 permanently frozen ground 永冻地 mechanics of frozen ground 冻土力学 ...
?永冻土
... permanently frozen ground 永冻土 perpetually frozen ground 永冻土 seasonal frozen ground 季节冻土 ...
英汉双解词典包含3185865条英汉词条，基本涵盖了全部常用单词的翻译及用法，是英语学习的有利工具。