If the certification body moves significantly from the basehead count distribution calculation, an explanation is required in the audit plan documents.
如果认证机构要改变基本的分配方案，需要在审核计划文件中有具体的解释。
2
The surgeon placed catheters through the veins and arteries near the base of the head.
外科医生把导管插入靠近大脑底部附近的血管和动脉。
《柯林斯英汉双解大词典》
3
Use silicone rubber around the base of each leg and around the wood screw's head.