柴油引擎 - 欧盟针对车辆用柴油发动机的气态污染物排放采取的措施的法法规 Council Directive Amending Directive 88/77/EEC on the Approximation of the Laws of the Member States Relating to the Measures to be Taken Against the Emission of Gaseous Pollutants from Diesel Engines for Use in Vehicles