From graph 2 the immunization of the hair leaves a residual solubility of 7%, so low that the hair is not more amaged by the hydrosulphide group.

• 从图2知：皮免疫后，（角蛋白）的残余溶解度为7%25，溶解度如此之低，以至于皮毛不能被硫氢基。。。。。