co2

2 篇文章
six times more CO2 than is in our atmosphere today...
Walden 21
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15 0 1

six times more CO2 than is in our atmosphere today... 比我们今天大气中的二氧化碳多六倍

co2 today than times atmosphere more is in our six
CO2 detector mellow yellow.
Walden 21
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0 0 1

CO2 detector mellow yellow. 二氧化碳检测仪显示正常

mellow co2 detector yellow
  • 1