Crosby, P., "Quality is Free: The Art of Making Quality Certain", McGraw-Hill, 1979.
《自由的质量管理：确保质量的艺术》，McGraw - Hill出版，1979。
However, because of the many factors that impact on the traditional model of education, making education and teaching quality education from the goal of the new era there was a certain distance.
但是，由于受到传统教育模式下的诸多因素影响，使得教育教学离新时期实施素质教育的目标还有一定的距离。
It provides some reference bases for making a quenching process and practical operation, and has a certain significance for improving the quenching quality.
为制订淬火工艺和实际操作提供了一些参考依据，对提高淬火质量有一定意义。
It provides some reference bases for making a quenching process and practical operation, and has a certain significance for improving the quenching quality.
为制订淬火工艺和实际操作提供了一些参考依据，对提高淬火质量有一定意义。
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