american systme of wool grading是什么意思、英文翻译及中文解释
american systme of wool grading
词语: american systme of wool grading
解释: 美国羊毛分级制
词性: 名词
词典: 农牧林专业英汉词典
american systme of wool grading 相关解释
美国羊毛分级制 american systme of wool grading;blood system of wool grading