Tropical forest trees are absorbing about 18% of the carbon dioxide added to the atmosphere each year from burning fossil fuels, substantially buffering the rate of change.
每年化石燃料燃烧产生并排放到大气中的碳排放，有18%被热带森林吸收了，大大减缓了碳排放的增加速率。
2
And some problems such as the oxidizing rate and the fully burning of carbon, the composition and shaping of carbonic reheating agent have been analyzed.
讨论分析了碳的氧化速度和完全燃烧，以及碳质发热剂的组成与成型等问题。
3
Rate of burning of the carbon in injected fuel in the hearth is low;