求翻译：铬在主成分3中具有较高的因子载荷，汞在主成分4中具有较高的因子载荷，两种重金属单独具有较高的载荷，且与其他元素关系不亲密。铬的产生主要来自于劣质化妆品、皮革制剂的使用。而Hg，作为燃煤因子，当燃煤和垃圾燃烧时产生了大量的废气，除此之外，生活中大量的荧光灯、汞灯等气体放电灯的广泛使用,使得绿地表层土壤中汞的含量远远超过背景值。是什么意思？

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The chromium in 3 has the high factor load in the principal components, the mercury in 4 has the high factor load in the principal components, two kind of heavy metals alone have the high load, also is not intimate with other element relations.The chromium production mainly comes from the inferior c

Chromium has a high factor principal component 3 loads, mercury has a high factor principal component 4 loads, two separate has a high load of heavy metals, and other elements are not close. Chromium produced mainly from the poor quality of the use of cosmetics, leather preparation. Hg, as coal comb

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