您要查找的是不是：
- permafrost subsoil 永冻心土
- They embedded the pilings deep into the subsoil. 他们把桩深深打进地基下的土中。
- Gravely soil with clay-limestone subsoil. 以黏土与石灰岩为基土上覆厚实土壤层。
- A specific layer of soil or subsoil in a vertical cross section of land. 地层，岩层处于土地的垂直横截面中的某一具体土层或次土层
- Methane Bubbling Up From Undersea Permafrost? 甲烷从海底永冻层带冒出？
- But it's also melting permafrost around the world. 但它也使世界各地的冻土融化。
- Earthworms burrow deep into the subsoil. 蚯蚓深深地钻进底土。
- The rain has soaked into the subsoil. 雨水浸润了表土。
- He embedded the pilings deep into the subsoil. 他把桩深深打进地基下的土中。
- This is the vegetational climate of arctic permafrost regions. 这是北极永冻地区的植物气候。
- The subsoil resources occur at widely scattered locations. 地下的资源散布各地。
- Melting permafrost will hit existing and planned infrastructure. 冻土融化将冲击我们现有的和计划中的基础设施建设。
- An example of a tipping point is the thawing of the permafrost. “气候引爆点”的一个例子就是永久冻土层的融化。
- But a layer outside the permafrost is suffering the human threat. 可是地球的外圈层正受到人类的威胁。
- You mean meteorological, geological, and subsoil conditions? 您的意思是指气象，地质和地基土层状况吗?
- Permanently frozen subsoil, occurring throughout the Polar Regions and locally in perennially frigid areas. 永冻土永久冰冻的下层土壤，出现在整个北极地区和部分长期寒冷的地区
- Perhaps this is caused by the sudden melting of subsurface permafrost. 可能是地下永久冻土突然融化所造成。
- About half of the Golmud-Lhasa 19) section was built over permafrost. 格尔木到拉萨段铁道大约有一半是建在冻土上。
- Thawing and refreezing each year, an active layer of soil lies over permafrost. 覆盖在永冻层上方的一层活冻层土壤，每年都会融化和重新冻结。
- With ample moisture stored in the subsoil, the crops matured rapidly. 由于下层土壤湿度大,农作物生长迅速。
