emission control是什么意思？

Several different types of troubles may be caused by improper conditions in the evaporative - emission - control systems.蒸发控制系统的不正常工况能引起不同类型的故障.All automobile engines now built are equipped with the positive - crankcase ...

emission control的音标：emission control的英式发音音标为：[ɪ'mɪʃən kən'trəul]emission control的美式发音音标为：[ɪ'mɪʃən kən'trol]...