暴露于大气中的铝表面呈现三层结构，即氧化铝和氢氧化铝层、其上的腐蚀产物层和最上层的污染物沉积形成的污染物层。
A three layer of aluminum exposed to atmosphere is identified: the aluminum and its native oxide, the corrosion layer atop oxide aluminum, and a surface contamination layer.
酒类商品应远离高污染、高辐射地区，不得与有毒、有害、污染物(源)、腐蚀性等物品混放。
Alcoholic commodities should be far away from high pollution and high radiation area, should not be stored together with the toxic, harmful and corrosive goods and pollutants (sources).
该设备具有技术先进，结构紧凑，污染物去除率高，故障少，耐腐蚀，能耗低等特点。
It is characterized by advanced technology and compact structure as well as high purification efficiency and resistance to etch with less trouble and low energy consume.
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