Although change in carbondioxidecontent closely follows change in temperature during periods of deglaciation, it apparently lags behind temperature during periods of cooling.
虽然在冰川消退期间二氧化碳含量的变化与温度的变化密切相关,但它显然滞后于冷却期间的温度。
2
In large towns the carbondioxidecontent may be slightly higher than in country districts.
在大城镇里,二氧化碳的含量会略高于乡下。
3
While photosynthetic life reduced the carbondioxidecontent of the atmosphere, it also started to produce oxygen.