We all know that trees can be recycled carbon dioxide, with a large number of felled trees, the number of trees will be drastically reduced, we can not be exhaled carbon dioxide cycle.
大家都知道树木可以循环二氧化碳，如果大量砍伐树木，树木的数量就会急剧减少，我们呼出的二氧化碳无法得到循环。
The oceans are a key part of the natural carbon cycle, in which carbon dioxide is circulated between the land, seas and atmosphere.
在自然的碳循环中，二氧化碳于陆地、海洋和大气中流通，海洋是其中一个关键的环节。
Researchers think that the carbon cycle turns over about 330 billion tonnes of carbon dioxide each year. Oceans absorb about half this.
研究人员认为，每年碳循环都会周转大约3300亿吨二氧化碳，其中的一半都被海洋吸收。
Researchers think that the carbon cycle turns over about 330 billion tonnes of carbon dioxide each year.
研究者认为，碳循环每年周转大约3亿3千万吨二氧化碳。
Capnometry is the measurement and numerical display of the carbon dioxide concentration in the respiratory gas during the whole respiratory cycle (inspiration and expiration).
二氧化碳测定术是在整个呼吸循环过程(吸气和呼气)中气体中二氧化碳的测定和数值显示。
When animals die, they return to minerals and carbon dioxide and the cycle renews.
当动物死时，他们又回归成矿物质和二氧化碳，进入新的循环。
The aerodynamic performance of turbomachinery for an gas turbine engine based on a semi-closed cycle employing carbon dioxide as the primary working fluid was analyzed.
本文对采用二氧化碳作为基本工作流体的半闭环燃气轮机循环的空气动力学特性进行了详尽的分析。
Infrared sensor method can also test the temperature effect on the permeation of carbon dioxide, thus the tough storage environment and the storage cycle can be analyzed.
红外传感法还可以测试温度对于二氧化碳渗透量的影响，从而为碳酸饮料较严峻储存环境下的存放周期提供测试分析方法。
The COP of conventional trans critical carbon dioxide air conditioning cycle depends strongly on the working fluid temperature at the gas cooler outlet.
常规跨临界二氧化碳空调循环的性能系数对气体冷却器出口工质温度十分敏感，该温度越低，同等条件下性能越好。
The carbon dioxide used is a by-product of industrial processes and once a cycle has been completed, 98% of the carbon dioxide is filtered and reused.
二氧化碳的使用是一个由产品的工业过程，一旦一个周期已经完成， 98 ％的二氧化碳过滤循环再用。
More and more Carbon dioxide, and acid rain comes along, get more trees dead, so the cycle is worse and worse.
越来越多的二氧化碳气体，酸雨来临，使更多的树死了，这样的循环是每况愈下。
In a filling step (S10), a refrigeration cycle is filled with carbon dioxide.
在填充步骤(S10)中，对制冷循环回路填充二氧化碳。
But I am only highlighting the fact that the entire meat cycle is very very intensive, in terms of carbon dioxide emissions.
但我只是强调一个事实：整个肉品生产过程，释放非常非常多的二氧化碳。
Mark Adams of the University of Sydney said climate change could trigger a vicious cycle in which forests could stop becoming sinks of carbon dioxide (CO2).
他指出，伴随地球变暖，林火逐渐成为碳污染的一大来源。气候变化导致恶性循环，使得森林难以再作为吸附二氧化碳的碳库。
Mark Adams of the University of Sydney said climate change could trigger a vicious cycle in which forests could stop becoming sinks of carbon dioxide (CO2).
他指出，伴随地球变暖，林火逐渐成为碳污染的一大来源。气候变化导致恶性循环，使得森林难以再作为吸附二氧化碳的碳库。
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