岩溶地区石漠化综合治理 the comprehensive treatment of stony desertification in karst areas
区指标化石 province index fossile
地区指标化石 province index fossil
不同的化石区 fossil localities
随着冰层融化，进入北极区变得容易，使得俄国拥有更多的化石燃料。
As the melting ice allows access to the Arctic, Russia will become richer still in fossil fuels.
某一地区一旦有人类居住，这里的大象和猛犸象就开始从化石记录里消失。
The creatures disappear from the fossil record of a region once it became colonized by humans.
哈默和他的同事上世纪90年代就曾在这里发现了其他一些新的物种，之后他们一直在这一地区搜索化石。
Hammer and colleagues were scouring the area for fossils after having found other new species there in the 1990s.
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