以下为句子列表：
英文: A control scheme of decompounding sintering process control into two branch control models, chemical composition and control of burn-through point was put forward aiming at the problem of control complexity of iron ore sintering process.
中文: 摘要针对铁矿石烧结过程控制复杂性问题，提出了一种将其分解为烧结矿化学成分控制和烧结终点控制的方案。
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英文: Abstract: In this paper，the essential chemical composition on the spheroidized quality of small-sized ductile iron pipes have been investigated，and the degeneration of spheroidal graphite in ductile iron pipe was analyzed，under practical manufacturing con
中文: 文摘:在实际生产的条件下，研究了小口径球墨铸铁管在球化后主要化学成分的分布和变化对铸态球化效果的影响，并对铸管存在的球化衰退进行了分析；根据试验结果，提出了对成分及工艺条件进一步的改进措施。
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英文: Abstract: The paper introduced the optimization of chemical composition of rare earth microalloy.
中文: 文摘:对玻璃模具材质的化学成分进行了合理设计和优选。
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英文: Abstract: This paper describs the smelting technology of high toughness nodular cast iron QT400-18 in cupola.The choice of raw material,chemical composition and the process of nodularization and inoculation is analyzed also.As a result,the reasonable seml
中文: 文摘:本文阐述了在冲天炉熔炼条件下铸态高韧性球墨铸铁QT400-18生产技术工艺，并对原材料选用、化学成份选择、球化处理工艺、孕育处理工艺进行了分析研究，确定了合理的熔炼工艺，为生产合格材质铸件提供可靠的保证。
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英文: By adjusting the chemical composition of a material, scientists can fine-tune its wave-propagation characteristics for a specific application.
中文: 科学家可以藉由调整材料的化学成份，精密调节该材料的电磁波传递特性，以符合特定的应用需求。
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