catalytic converter

US /ˌkæt̬.əˌlɪt̬.ɪk kənˈvɝː.t̬ɚ/
UK /ˌkæt̬.əˌlɪt̬.ɪk kənˈvɝː.t̬ɚ/
"catalytic converter" picture
1.

催化转化器, 三元催化器

an apparatus fitted to the exhaust system of a motor vehicle, containing a catalyst for converting pollutant gases into less harmful ones

:
The mechanic replaced the faulty catalytic converter.
机械师更换了有故障的催化转化器
New cars are required to have a catalytic converter to reduce emissions.
新车需要安装催化转化器以减少排放。