This kind of calculation method can accurately appraise group positional factor precision and improve the qualified rate of product.
通过这种计算，可以准确评价成组要素位置精度，提高了产品合格率。
Product quality reach the standard (GB/T5237-2004), each provided to customers are qualified aluminum products, customers are not satisfied with the service rate of less than 5%.
产品质量全面达标（GB/T5237-2004），向顾客提供的每支铝材都是合格品，顾客对服务不满意率低于5%。
By a small of quantities of experimental production, the qualified rate of product has been heightened from the original about 20% to more than 80%.
通过小批量试生产，使产品合格率从原来的20%左右提高到了80%以上。
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