毛囊群由2—6根粗毛组成，粗毛有独自的毛囊，每一毛囊有皮脂腺和汗腺。
Each group consists of 2-6 cover hairs, the cover hairs have follicles of their own and each of the cover hairs has sebaceous gland and sweat gland.
毛囊群由2—6根粗毛组成，粗毛有独自的毛囊，每一毛囊有皮脂腺和汗腺。
Each group consists of 2-6 cover hairs, the cover hairs have follicles of their own and each of the cover hairs has sebaceous gland and sweat gland.
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