时令果蔬很常见,但时令汽油你听说过吗?北京从2017年起,车用汽油也要像时令果蔬那样按季节分品种供应了。目前,北京机动车保有量已达到565万辆。其中大部分车是靠汽油或柴油在发动机中燃烧提供动力的,所以,防治机动车污染不仅要从技术上减少车本身行驶时污染物的排放量,也要对其使用的油的质量严格要求。从2017年1月1日开始,北京在全市 Seasonal fruits and vegetables are common, but seasonal gasoline have you heard of it? Beijing from 2017 onwards, car gasoline must be seasonal varieties, such as seasonal fruits and vegetables supply. At present, the number of motor vehicles in Beijing has reached 5.65 million. Most of these vehicles are powered by the combustion of gasoline or diesel in the engine. Therefore, the prevention and control of motor vehicle pollution not only technically reduces the emission of pollutants while driving the vehicle itself, but also imposes strict requirements on the quality of the oil used . Starting January 1, 2017, Beijing is in the city