铁组 meaning in Chinese

iron group

Meanwhile , the change of ferrous oxidation rate of ferrous glycinate and ferrous sulfate after processed to flour products was compared respectively , and ferrous oxidation rate of ferrous sulfate group was obviously higher than that of ferrous glycinate group
同时比较了甘氨酸螯合铁和硫酸亚铁在加工制作成各类面制品后的亚铁氧化率的变化，硫酸亚铁组的亚铁氧化率明显高于甘氨酸螯合铁组。