Air inside an alveolus gives oxygen to blood and receives carbon dioxide from blood.肺泡里的空气给血液供氧,同时接收血液里的二氧化碳.Through this incision, the abdominal cavity is distended with carbon dioxide gas...二氧化碳气体通过这个切口进入，造成腹腔肿胀。Methan...
The two principal combustion products are water vapor and carbon dioxide.两种主要的燃烧产物是水蒸气和二氧化碳。Mars has an insubstantial atmosphere, consisting almost entirely of carbon dioxide.火星的大气层极其稀薄，几乎全部由二氧化碳构成。Carbon dioxide is a ne...