通过共沸精馏减少产品质量指标波动，优化单元操作，确保更小消耗。

By azeotropic rectification the indexes fluctuate of product quality are decreased, the unit operations are optimized, the consumption is lessened.

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运用这种系统提高控制精度，减少张力波动，为保证带材产品质量，提供切实可行的最佳途径。

By this system, tension fluctuation during operation can be reduced and the quality of products improved.

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减少产品制造过程中出现的各种波动，正确找出制造过程中的波动源，是多工序、多变量生产系统实施质量控制和质量改进的基础。

Reducing fluctuating and finding out fluctuating resources in manufacturing process is the base of conducting quality control and improvement in multi-variable, multi-stage process.

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