final digit code

例句：

1. 1. The final digit code for the product key is 000000.
   产品密钥的最终数字代码是000000。
2. 2. The final number code for the serial number is 123456789.
   序列号的最终数字代码是123456789。
3. 3. The terminal character code for the user ID is abcdefghi.
   用户ID的终端字符代码是abcdefghi。