Noun:

1. a symbol that establishes the identity of the one bearing it

IDEabbr.集成电路设备（=integrated drive electronics）；集成开发环境（=integrated development environment）Ideku伊代库

1. It's the best unique identifier you have.
   它是您最好的唯一标识符。
2. The identifier is unique across the server.
   该标识符在服务器中是唯一的。
3. The target internal file identifier is incorrect.
   目标内部文件标识符不正确。