基本解释褐色韧皮部英汉例句双语例句There were parenchyma, bast fiber and brown block in powder.粉末可见木薄壁细胞、韧皮纤维和棕色块等特征结构。brown bast更多例句词组短语短语brown bast disease 褐皮病brown bast更多词组专业释义环境科学技术褐韧皮褐皮病