周面 meaning in English

periphery

Grinding parts : including the ends , surface rings , trifle furrow , inclined plane , opening and etc
研磨部位：包括端面周面断屑槽沟斜面孔穴等加工研磨。
Significance of facial voluntary movements and recuperation of electro physiologic outcomes in the first week after decompression in the total bell palsy
完全性贝尔麻痹减压术后1周面肌随意动作及电生理数据恢复的意义