烟雾消减 meaning in Chinese

smoke abatement

In addition , the bus companies had continued to conduct the trial of crts on euro ii and iii buses in 2003 , which were more effective emission reduction devices on buses with euro ii and iii engines
此外，在2003年，巴士公司就欧盟ii型及iii型巴士采用连续还原粒子过滤器继续进行试验计划。连续还原粒子过滤器对使用欧盟ii型及iii型引擎的巴士是更有效的烟雾消减装置。
In addition , the bus companies had continued to conduct the trial of crts on euro ii and iii buses in 2003 , which were more effective emission reduction devices on buses with euro ii and iii engines
此外，在2003年，巴士公司就欧盟ii型及iii型巴士采用连续还原粒子过滤器继续进行试验计划。连续还原粒子过滤器对使用欧盟ii型及iii型引擎的巴士是更有效的烟雾消减装置。