Carbon cycle [生物] [天] 碳循环 ; 碳素循环 ; 碳化循环 ; 碳的循环
Global carbon cycle 环球碳循环
The Carbon Cycle 碳循环 ; 碳素循环
photosynthetic carbon cycle 光合碳循环
Soil Carbon Cycle 土壤碳循环
Carbon cycle and modeling 碳循环与模型
carbon-cycle 碳循环
carbon cycle in stars 星球碳循环
carbon cycle of forest 森林碳循环
The Global Carbon Cycle 全球碳循环
Are the outlines of the carbon cycle really that familiar?
碳循环的轮廓真的是我们所熟悉的那样子么？
These tiny things form the base of the food chain and play an important role in the global carbon cycle.
这些微小的东西构成了食物链的基础，并在全球碳循环中发挥着重要作用。
The three most important nutrient recycles are the nitrogen cycle, the carbon cycle and the one we are going to talk about today, the Phosphorus cycle.
这三种最重要的营养循环包括氮循环、碳循环和我们今天要讲的磷循环。
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