Normally sanitary napkin is consists of surface layer, absorbentlayer and bottom layer, so you have to consider the materials and functions in the above three layers.
卫生巾一般由表面层、吸收层和底层三部分构成，使用时就要从这三部分的材料及作用考虑。
2
A sheet of absorbentlayer can be also additionally arranged at the longitudinal end of the absorbent wool core layer and an elastic waistline can be arranged on the front face or the back face.
还可在在吸水棉芯层的纵向端加装一片吸水层，并可在正面或背面加装弹性腰围。
3
Cast glass and rolled glass, in sheets or pro - files, whether or not having an absorbent, reflecting or non-reflecting layer, but not otherwise worked.