youdao

The distinctive address that identifies a NIC is called the Media Access Control (MAC) address.

这个识别网卡的独特地址就是所谓的媒体访问控制(MAC)地址。

youdao

But you have no control over what MAC addresses will be in the devices you purchase, and you normally can't alter them, so it's impossible to organize anything by MAC address.

但当你买到一块网卡时却无法控制其MAC地址的值，而且通常你还不能修改它，这就会由它引出一些事情。

youdao

WiFi connection log, the Unique Device Identifier (U DID), a Media Access Control (MAC) address, or any other identifier unique to a specific device?

FORBES: Congress Queries Apple, iPhone App Developers About Privacy