总有机碳量 Total organic carbon ; total organic carbon content
总有机碳含量 TOC ; total organic carbon content ; total organic carbon
有机碳总量 total organic carbon ; TOC
总含碳量的测定 Determination of total carbon content
总碳含量的测定 Determination of total carbon content
二氧化碳总含量 total carbon dioxide content ; total content
二氧化碳总量 TCO
动脉血二氧化碳总量 TCO
总含碳量 total carbon content
碳总量限制和交易法规 Cap-and-trade Program
湿地是地球上碳储量最大的陆地生态系统，其碳储量约占陆地生态圈总碳量的20%。
Wetlands have the largest carbon storage among terrestrial ecosystems on the earth, and are estimated to contain 20% of carbon in global terrestrial ecosystems.
我们的食物从农田运送到市场平均要经过1,500至2,500英里路，但是这些路途产生的碳量一般仅占食物总的产碳量的4%。
Our food travels from 1, 500 to 2, 500 miles on average from farm to supermarket, but that journey typically accounts for just 4% of a food's carbon footprint.
这种方式对总碳排放量的贡献依旧很大：占到将近总量的15 - 17%，这比全世界所有交通工具——轮船，汽车，火车和飞机——所排出的碳量还要多。
And its contribution to emissions is still large: say 15-17% of the total, more than the share of all the world's ships, cars, trains and planes.
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