“这些永久冻土中的沉积物开始融化，并释放出甲烷，”麦斯林说。
"These permafrost deposits are now melting and releasing their methane," said Maslin.
他是安定和永久的化身，即使(用季特林的话说)他说“那个东西四分五裂了。”
He was the personification of stability and permanence, even when, in Gitlin's words, his message was "that things are falling apart."
以后苗木出圃栽植成重复的永久性试验林。
Later out plant the seedlings in a replicated permanent test plantation.
生态环境综合治理是通过防止土地沙漠化，因地制宜集中连片发挥林、草永久性屏障作用。
Ecological environment should be harnessed through controlling land desertification and utilizating woodland as permanent nature defence.
非同寻常的是托林通早在一百三十八年前就死了，葬于北极1.8米深的永久冰土下面。
What was unusual about this was that Torrington had been dead for 138 years, buried under 1.8 meters of Arctic permafrost.
非同寻常的是托林通早在一百三十八年前就死了，葬于北极1.8米深的永久冰土下面。
What was unusual about this was that Torrington had been dead for 138 years, buried under 1.8 meters of Arctic permafrost.
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