轻型汽车和重型汽车:2个相对的概念按照国家汽车分类标准,汽车按用途、座位划分为乘用车和商用车。按照国家环保标准,汽车按最大设计总质量m划分为轻型汽车和重型汽车(但不同于我国汽车行业统计中按m(或车长L)划分的微、轻、中、重(大)型概 Light-duty vehicles and heavy-duty vehicles: Two relative concepts According to the national car classification, cars are divided into passenger cars and commercial vehicles by purpose and seats. According to the national environmental protection standards, the cars are divided into light-duty vehicles and heavy-duty vehicles according to the maximum total design mass m (but different from the micro, light, medium and heavy type profiles classified by m (or captain L) in the statistics of China’s automobile industry