变精度粗糙集模型允许有一定程度的错误分类率存在，利用这种特性可以有效消除投标风险信息系统中的数据噪声，提高风险要素评价的精度。
With the help of Analytical Hierarchy Process with Variable Precision Rough Set, an algorithm to evaluate significance degree of risk factors in IT project bidding was put forward.
工业试验结果表明，本系统能够实现高精度定尺锯切及高生产率。
The results of industrial experiments have showed that this system can realize high accurate cutting to length and high productivity.
对影响铸坯单重的因素进行了调查，在小方坯连铸机上试验使用了定尺定重切割系统，提高了铸坯单重控制精度及轧机轧制成材率。
Factors to influence length cut strand were investigated. Based on above efforts, accuracy control of cut strand and the yield during rolling process were improved.
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