求翻译：摘要：钢洁净度在钢铁应用的发展中是最重要的。钢的性能决定了它的用途与竞争能力，而化学成分和最终的显微组织确定了钢的性能。氧化物在改变钢的显微组织上扮演了重要角色。因此控制夹杂物在钢中的数量与形态分布，提高洁净度来提高洁净钢的质量。是什么意思？

Abstract: Steel cleanliness in the development of applications in the steel is the most important. The performance of steel determines its use and competitiveness, while chemical composition and microstructure to determine the final performance of steel. Oxide in changing the microstructure of steel

Summary: steel cleanliness in the steel used in the development is the most important. The performance of steel determines its use and competitiveness, while the chemical composition and ultimately determine the microstructure of steel's performance. oxides of steel microstructure changes have playe

Abstract: The steel purity in the steel and iron application development is most important.The steel performance has decided its use and competitive ability, but the chemical composition and the final microstructure have determined the steel performance.The oxide compound in changed the steel in the

Abstract: the steel cleanliness in steel is the most important aspect of application development. Steel performance determines its use and competitive abilities, eventually, chemical composition and microstructure to determine its properties. Oxide in changing on microstructure of steel has played a

Summary: The steel cleanliness is the most important in the development that the steel employs. The performance of the steel determines its use and competitive power, organize the performance of the definite steel in and micro- chemical composition and final one. Oxide change to play important role