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280ppm

网络百万分之280

280ppm

280ppm

280ppm

百万分之280

Centre for Food Safety -... ... 0.47ppm 百万分之0.47 280ppm 百万分之280 Net Weight:150g 庄家雪花方块酥(全麦) ...

1

Goes up to 280 and then drops for various reasons that aren't important to discuss right now .

上升到 280ppm 然后下降它由很多原因引起，但对今天的讨论不重要。

2

Carbon dioxide in the atmosphere has risen from 280 ppm before the industrial revolution to around 387ppm today .

大气中的二氧化碳含量由工业革命前的 280ppm 上升到了今天的 387ppm 。

3

Less direct records show that the rise began about 1750 , and that the level was stable at around 280ppm for about 10, 000 years before that.

较间接的纪录，则显示这上升大约从 1750年开始，而在那之前的浓度在 280ppm 维持稳定将近一万年。

4

At present , atmospheric CO2 has reached 387 parts per million (ppm), well above the preindustrial figure of 280 ppm.

现在，大气里的二氧化碳浓度已经达到 387ppm （1ppm 为百万分之一），远大于工业革命之前的 280ppm 。

5

Prior to the industrial revolution, CO2 levels were around 280ppm.

在工业革命前二氧化碳水平维持在大约 280 个百万分点。

6

The current atmospheric concentration of CO2 is around 380 ppm, up from 280 ppm at the start of the industrial era in 1800 .

自从工业时代开始以来，大气的二氧化碳浓度已由 1800年的 280ppm ，升高到目前的 380ppm 左右。

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