Ocvirk number

例句：

1. 1. The Ocvirk number is a unique identifier for each individual in the database.
   奥克维尔数是数据库中每个个体的独特标识符。
2. 2.The Ocvirk number helps to ensure that only authorized personnel can access sensitive information.
   奥克维尔数有助于确保只有授权人员才能访问敏感信息。
3. 3. The Ocvirk number is used to track the movement of individuals within the community.
   奥克维尔数用于追踪社区内个体的移动情况。