分析了GB/T406-93棉本色布国家标准与美国四分制标准之间的差异，介绍了美国四分制标准的特点和应用情况。
This paper analyzed the differences between Chinese standard and American four-mark standard on GB/T 406-93 cotton greige, and introduced the features and application of American standard.
分析了GB/T406-93棉本色布国家标准与美国四分制标准之间的差异，介绍了美国四分制标准的特点和应用情况。
This paper analyzed the differences between Chinese standard and American four-mark standard on GB/T 406-93 cotton greige, and introduced the features and application of American standard.
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