求翻译：年报数据显示，2009年全国机动车排放污染物5143.3万吨，其中一氧化碳(CO)4018.8万吨，碳氢化合物(HC)482.2万吨，氮氧化物(NOx)583.3万吨，颗粒物(PM)59.0万吨。汽车是机动车污染物总量的主要贡献者。其排放的CO和HC超过70%，NOx和PM超过90%。是什么意思？

Annual data show that in 2009 the national motor vehicle emission pollutants 51.433 million tons, of which carbon monoxide (CO) 4018.8 tons, hydrocarbons (HC) 482.2 tons of nitrogen oxides (NOx) 583.3 tons of particulate matter (PM) 59.0 million tons. Motor vehicle pollution is a major contributor t

Annual Report 2009, data show that the national motor vehicle emission of pollutants from 51.433 million tons, of which carbon monoxide (CO) 40.188 million tons, hydrocarbons (HC) 4.822 million tons, and nitrogen oxides (NOx particles) 5.833 million tons, 59 tons (PM). Total automobile is motor vehi

Annual report data display, in 2009 national vehicle emissions pollutant 51,433,000 tons, in which carbon monoxide (CO) 40,188,000 tons, hydrocarbon (HC) 4,822,000 tons, nitrogen oxide compound (NOx) 5,833,000 tons, particles (PM) 59.1 tons.The automobile is the vehicle pollutant total quantity main

Annual report according to the 2009 National 51.433 million tons of vehicle emission pollutants, carbon monoxide (CO) 40.188 million tons, hydrocarbons (HC) 4.822 million tons of nitrogen oxides (NOx) 5.833 million tons, particulate matter (PM) to 590,000 tons. Automobile motor vehicles is a major c

The annual newspaper data revealed, the national motor vehicle discharged 51,433,000 tons of pollutant in 2009, carbon monoxide (CO) is 40,188,000 tons among them, hydrocarbon (HC) is 4,822,000 tons, nitrogen oxide (NOx) is 5,833,000 tons, particulate matter (PM) is 590,000 tons. The car is a main c