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- permanent frozen layer 永冻层
- The thicknesses of steel frozen layer and penetrated layer are the Key factors to the ladle free-opening rate by theortical analysis. 通过对钢包自开的原理进行理论分析,显示钢水冻结层和渗透层厚度是影响钢包自开率的主要因素。
- Not only is the planet's rising temperature melting massive glacies, but it also seems to be thawing out the layer of permanently frozen soil below the ground's surface. 这个星球不断升温，这不仅仅会导致巨大的冰川融化掉，似乎还会使地表之下永久冻结的土壤层解冻。
- 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
- 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
- Because of the intense cold, the subsoil of the tundra remains permanently frozen to a great depth. 由于严寒，冻土带的底层土仍然长久冷冻得很深。
- Permafrost is basically dirt that's been permanently frozen for hundreds or thousands of years, much of it since the last ice age. 永久冻土层基本上是已经被持久冻结数百或数千年的泥土，其中大部分是自上一次冰河时期。
- Snow covers more than half the country six months a year.Almost half the country has permafrost (permanently frozen soil) beneath the ground surface. 俄罗斯大片土地位于北极圈内，一半的土地有半年以上覆盖着白雪，领土面积的一半有冻土层。
- A surface, layer, or mass of frozen water. 冰面冻结的水的面、层或块
- If the expression permanently frozen on its face is any indication,it was fleeing some horrible creature when it mistakenly stepped into the sunlight and died. 如果永久凝固在它脸上的表情能说明什么的话，那就是它一定是在逃避什么可怕的生物而误入有阳光的地方，然后就死了。
- Nothing can assure permanent happiness. 没有什么东西能确保永久的幸福。
- I'm looking for a permanent appointment. 我正在寻找固定的工作。
- A treeless area between the icecap and the tree line of Arctic regions,having a permanently frozen subsoil and supporting low-growing vegetation such as lichens,mosses,and stunted shrubs. 苔原北极地区冰盖和乔本植被线之间的无树地区，有永冻底土，并支撑低的植物，如苔藓、地衣和发育不全的灌木。
- Application to seism survey technology in permanent frozen soil survey 地震勘探技术在岛状多年冻土勘察中的应用
- She is looking for permanent employment. 她正在找固定的工作。
- The butcher chopped off a rib of frozen pork. 屠夫砍下一块冻肉的肋条。
- A treeless area between the icecap and the tree line of Arctic regions, having a permanently frozen subsoil and supporting low-growing vegetation such as lichens, mosses, and stunted shrubs. 苔原:北极地区冰盖和乔本植被线之间的无树地区,有永冻底土,并支撑低的植物,如苔藓、地衣和发育不全的灌木。
- The snow has frozen hard on the road. 路上的雪已经冻得很硬了。
- They established their permanent abode here. 他们在此建立了永久居所。
- This layer of rock contains a lot of flint. 这一岩层中有大量燧石。
