Following the principle of“new vehicle by new standard and old vehicle by new standard”,double idle speed method will be taken as basic detection method and simple operating mode for gasoline automobiles and will be put into effect in stages in the countrywide.
根据“新车新标准,老车老标准”的原则,双怠速法将是汽油车基本检测方法,简易工况法在全国范围内分步实施,柴油车将逐步采用不透光烟度计的测量方法。