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1·The article describes developping and using of tail-end wool in dyeing and wasty wool in combing.

本文叙述了毛条在在染色中的匹尾毛和在精梳中下脚毛的开发利用。

2·Analyzing the function of the roving frame at the wool semi-combing spinning and the effect of these questions being solved.

分析了在毛半精纺工艺中棉纺悬锭粗纱机的作用，及解决上述问题后的效果。