求翻译：毕节地区矿产资源丰富，到目前为止，已发现各类矿产30多种，其中硫铁矿探明35亿吨以上，主要集中在毕节市和大方县，其矿石含量平均在24%-28%左右，最高的超过45%，但全区到目前止除在建设中的大方48万吨/年硫酸项目外，均无硫化工项目。为了充分开发和利用矿产资源，促进资源优势转化为经济优势，规划在毕节市和大方县建设大型硫化工项目，建设内容主要为硫铁矿开采、洗选—硫酸—硫酸钾、高浓度磷复肥产业链。是什么意思？

Bijie rich in mineral resources, so far, 30 kinds of various minerals have been found, of which more than 3.5 billion tons of proven pyrite, mainly in Bijie and generous county, the average ore content of about 24% -28% , the highest more than 45%, but only in addition to the current region in the c

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The Bijie area mineral resource is rich, so far, had discovered each kind of minerals 30 many kinds of, in which pyrite verifies above 3,500,000,000 tons, mainly concentrates in the Bijie city and Dafang County, its ore content average about 24%-28%, highest surpasses 45%, but stops the entire area

Rich in mineral resources in bijie Prefecture, to date, has found more than 30 species of various mineral resources, including pyrite proved more than 3.5 billion tons, mainly concentrated in bijie Dafang County, and, the average mineral content in the 24% left-up over 45%, but the whole region to t

Rich in mineral resources in bijie Prefecture, to date, has found more than 30 species of various mineral resources, including pyrite proved more than 3.5 billion tons, mainly concentrated in bijie Dafang County, and, the average mineral content in the 24% left-up over 45%, but the whole region to t