通过对比不同污染态势下PM1中的化学组分差异,可以发现污染时段内 PM1浓度的升高主要伴随着有机组分及二次无机气溶胶浓度的显著增加,表明一次排放和二次气溶胶生成是造成 PM1污染的主要原因。较于西安和成都,上海和广州地区的PM1和PM2.5浓度间...
To make it possible to extract air from a water pump without the need for a dedicated structure for air extraction in the water pump which supplies cooling water to a cooling jacket on a cylinder head or cylinder block of a horizontally opposed or V-type engine. A circular pump chamber for...