求翻译：主成分2解释的因子为砷、镍，这两种重金属在主成分2中具有较高的载荷。砷是典型的燃煤因子，砷污染主要是由于生活中燃料、燃煤以及垃圾燃烧时产生了大量的废弃物，并且，砷作为玻璃、木材、纺织的原料，一旦玻璃、木材、纺织被使用，均增加了环境中砷的污染量。镍可在土壤中可富集，含镍的大气颗粒物沉降、含镍废水灌溉、动植物残体腐烂、岩石风化等都是土壤中镍的来源。是什么意思？

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The principal components 2 explanation factors for the arsenic, the nickel, these two kind of heavy metals in 2 have the high load in the principal components.The arsenic is the typical coal-burning factor, the arsenic pollution mainly is because lives time the fuel, the coal-burning as well as tras

Principal component factor 2 explain for arsenic, nickel, both in principal component 2 has a high load of heavy metals. Arsenic is a typical coal-fired factor, arsenic contamination is mainly due to fuel, coal and waste combustion in life when a large amount of waste, and arsenic as a raw material

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