本文对扩大式旋风集尘器冷模试验的主要设计参数进行了量钢分析，并用计算机对试验数据进行逐步回归处理，得到扩大式旋风集尘器的数学模型。
This paper concerns the main design parameters of the enlarged type cyclone dust collector used for the cold model test are analyzed with the dimensional analytical method.
分析认为，济钢大板坯连铸机出现粘结漏钢的原因是保护渣的性能不良，其中液渣层厚度、渣耗量及玻璃相比例偏低，以及结晶器液面波动，拉速提升过快等。
Analysis consider that the reason of breakout by sticking is bad capability of the powder, such as lower depth of liquid powder, less consumption and low proportion of glass phase in the powder.
摘要：含钢量对建设项目的经济性分析有着重要的作用，但在日常应用中对含钢量经济性常有不同的理解。
Abstract: the steel content plays an important role in the construction project economic analysis, but in the daily applications, has a different understanding of the steel content economy.
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