As more and more cars are produced and used, so the emission from their exhaust-pipes contains an ever larger volume of poisonous gas.
随着越来越多的汽车被制造和使用，这些汽车排气管里的排放物所包含的有毒气体的总量也越来越多。
Given the sheer volume produced-about 3 billion tons per year-it adds up to a staggering greenhouse gas problem.
如果大量生产水泥，大约每年生产30亿吨，其造成的温室气体污染将是惊人的。
The higher the volume fraction of methane, the more the surplus heat is produced at the same flue gas temperature.
在相同排烟温度下，甲烷体积分数越高，盈余热量越多。
应用推荐