permafrost table meaning in Chinese

永冻层层面线
永冻层上限
永冻面
永冻土层面
永冻土层深度
永久冻土台

But , even the permafrost table has highly raised the annual thermal imbalance of soil and the process of temperature rise , it is disadvantageous for the thermal stability of permafrost
对于高温多年冻土来说，尽管多年冻土上限也得到了较大幅度的抬升，但升温过程和土体年收支的不平衡都在朝著不利于多年冻土热稳定方向发展。
And , for cold permafrost , a better thermal stability situation will be developed under the condition that the temperature near the permafrost table beneath the block - stone embankment has largely dropped
然而，对于低温多年冻土来说，块石路基下部多年冻土上限附近温度有了较大的“冷量”积累，多年冻土正在朝著有利于热稳定方向发展。
By comparing and analysing the computed results and the change of the raised permafrost table , a concl usion is gived that the roadbed with insulations on the permafrost protects the permafrost well under itself , and the rational position and thickness for insulation were suggested
通过对计算结果和多年冻土上限变化的分析比较，得出了在多年冻土区路基中铺设保温材料对路基面下多年冻土具有明显的保护作用，总结出在多年冻土区路基工程中铺设保温层的合理厚度与位置。