It is proposed that the relationship between the fiber quality of raw ramie and the quality of its yarn may be expressed by the grey system.

• 经分析认为苎麻纤维原料品质与成纱品质指标所组成的系统为灰色系统,并对这一系统采用灰关联方法进行了分析,给出了分析过程和步骤。