单词

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permafrost

英 ['pɜːməfrɒst] 美 ['pɝməfrɔst]

n. 永久冻土，永久冻地；永久冻结带；永久冰冻

双语例句

1. 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.

2. This is the vegetational climate of arctic permafrost regions.: 这是北极永冻地区的植物气候.

3. The harder the material under the permafrost is, the larger the chamber charge required.: 永冻层之下的土壤越硬, 所需要的药室装药量也越大.

4. It became entombed in the permafrost, where it remained until recently freed.: 它被掩埋在永久冻土层里, 直到最近才被挖掘出来.

5. 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.