本文通过对大圆钢材的探伤质量分析，采取有效控制措施，实现了质量攻关的控制目标。
In this paper, on the great circle of steel quality analysis testing, to take effective control measures, quality research to achieve the control objectives.
根据试验结果，并结合竖炉投产后所采取的一系列攻关措施，使竖炉能在投产后较短的时间内达到攻关的目标值。
Based on the test result and a series of technological measures, it achieved goal value of tackle key problems in short time.
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