... carbon monoxide laser一氧化碳激光器 carbon nitrogen cycle碳循环 cardioid condenser心脏形聚光器 ...
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carbon-nitrogen cycle [天物] 碳氮循环
carbon-nitrogen-oxygen cycle [天物] 碳氮氧循环
soil carbon and nitrogen cycle 土壤碳和氮循环
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。
What seems certain is that the nitrogen cycle is changing faster and more profoundly than the carbon cycle, which has attracted much more attention.
显而易见的是，「氮循环」比「碳循环」更可怕，变迁得更快，影响也更广泛，不过大家比较关心的却还是「碳循环」。
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