exhaust gas catalytic converter

例句：

1. 1.The exhaust gas catalytic converter is an essential part of the vehicle's emissions control system.
   排气催化转换器是车辆排放控制系统中不可或缺的一部分。
2. 2.The exhaust gas catalytic converter helps to reduce harmful pollutants in the exhaust gases.
   排气催化转换器有助于减少废气中的有害物质。
3. 3. The exhaust gas catalytic converter is designed to improve fuel efficiency and reduce emissions.
   排气催化转换器旨在提高燃油效率并减少排放。