短语词组短語betain aldehyde 甜菜醛betain hydrochloride 甜菜堿鹽酸鹽Glycine betain 甘氨酸甜菜堿dodecyl betain 十二烷基甜菜堿thiolhistidine betain 巰組胺酸甲基內鹽Coco -betain 椰油基甜菜堿glicin -betain 甘氨醯甜菜酯Betain Aldehyde Dehydragenase 甜菜堿醛脫氫酶 返回 betain