file sequence number

例句：

1. 1. The computer system requires a unique file sequence number to access the data.
   计算机系统需要唯一的文件序列号才能访问数据。
2. 2.The company uses a file sequence number to track inventory and ensure stock levels are accurate.
   公司使用文件序列号来追踪库存并确保库存水平准确无误。
3. 3. The customer service representative requested a file sequence number for their new order.
   客户服务代表请求了他们的新订单的文件序列号。