alphanumeric key

基本解释

An alphanumeric part number. (This part number is unique and could suffice as the primary key.
字母数字零件号（此零件号惟一并且可以用作主键。
The Access Key ID is the key (20-character, alphanumeric sequence) needed to request authentication or to read queue items.
Access Key ID（由 20 个字母和数字组成）是请求身份验证或读取队列项所需的密匙。
However, because it can contain alphanumeric characters, it's inappropriate for use with Sphinx, which requires each record indexed to have a unique 32-bit integer key.
但是，由于它可以包含字母数字字符，因此它不适于与 Sphinx 结合使用，Sphinx 要求索引的每条记录都有一个惟一的 32 位整型键）。