求翻译：　　目前，我国资源性产品供需中的突出问题是：短缺大宗矿产品进口量不断扩张，对外依存度居高不下，并在一定程度上制约下游产业发展；与此同时，“两高一资”产品出口规模依然偏大，并引发低端加工制造业膨胀及能耗水平攀升，不利于社会经济的持续健康发展。因此，必须利用好进出口关税及其相关政策，以便在“保增长、调结构”的同时促进资源产业及产品贸易结构升级，进而为确保资源安全供应及促进资源优势向经济优势转化等方面做出实质性贡献。是什么意思？

Currently, the outstanding problems in the supply and demand of China's resource products are: shortage of bulk minerals imports continue to expand, the high dependence on foreign, and to some extent, restricted the development of downstream industries; At the same time, "two high and one capital" e

At present, our country's resources, product supply and demand problem is highlighted in the bulk mineral shortage: imports continued to expand, and external dependence is not high, and to a lesser extent on downstream constraints; and at the same time development of the industry, the "two" for a hi