Wealthy countries restrain the export of scrap iron and steel.
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2. 进口以石油制品和糖为大宗，出口以谷物与废钢铁为主，并为美国主要渔港之一。
Chief imports are petroleum goods and sugar. Exports mainly include grain and scrape iron and steel. In addition, it is one of the main fishing ports of US.
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3. 由于生铁和废钢铁都便宜，又因为不需要昂贵的精炼过程，和钢相比铸铁是一种廉价材料。
Since pig iron and scrap are cheap, and because there is no expensive refinement process, cast iron is a low cost material compared with steel.
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4. 为规避原材料涨价的影响，越来越多的钢铁企业自己收购矿山和煤矿或资源储备区，甚至收购废钢企业。
To shield themselves from higher raw-material prices, more of them are acquiring their own iron-ore and coal mines or deposits, as well as producers of scrap steel.
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5. 说明了废钢指数（S）是衡量钢铁工业废钢资源充足程度的判据。
The steel scrap index (S), as the criterion for defining the degree of availability of steel scrap for steel industry, is shortly defined.
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6. 本文论述了新的钢铁企业模型结构及采用部分进口废钢和铁矿石的能源优化问题。
The new model structure of iron and steel enterprises and the methods of optimizing energy by some scrap and raw ore are discussed in the paper.
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7. 分析了废钢比和吹炼元素烧损对钢铁料消耗的影响；
The influence of scrap ratio and loss of elements by burning on ferrous charge consumption is also analyzed.
With a number of steel plants, steel plants, foundries, etc. have a good relationship, so that pairs of steel scrap, scrap metal recycling has a very good price advantage.
With a number of steel plants, steel plants, foundries, etc. have a good relationship, so that pairs of steel scrap, scrap metal recycling has a very good price advantage.
