MeSH主题词 公路外机动车(Off-Road Motor Vehicles). 空气污染物(Air Pollutants).
双语例句
1
Off-roadmotorvehicles;
公路外机动车；
2
After successful implementation of the emission control on on-roadmotorvehicles such as automobiles, China started to follow the legislation process on off-road mobile equipment in Europe and USA.