这条河里淤积了工业废物.The river was thick with industrial waste.洪水过后, 地里淤积了一层泥浆.When the flood subsided , it left a layer of mud in the fields.河里的泥沙淤积在这里,年深日久便成了沙洲.The bar was formed by the mud and sand deposited here over a long ...
接下来, 我们来谈谈炼钢炉.Next, let's deal with the steelmaking furnace.钙颗粒与钢水中的杂质化合后在炼钢炉内形成一层表面炉渣.The Calcium particles combine with impurities in the steel to produce surface slag in blast furnace.将空气吹入在耐火的炼钢炉中熔融的铁水中,使铁中的碳和硅发...