The main pollutants of coal-firing boilers include dust, sulfuroxide, nitrogen oxide and carbon dioxide.
燃煤锅炉的主要污染物包括粉尘、硫氧化物、氮氧化物和二氧化碳。
2
A research official said 1998 figures were used because the year marked the highest level of sulfuroxide emissions in China.
一位研究官员解释到，因为1998年是中国硫化物释放含量最高的一年，因此这一年的数字被用来研究。
3
The negative C-type retardation compensator for the liquid crystal display includes polyarylate having a thio group or a sulfuroxide group in a polymer main chain thereof.