alphanumeric key

基本解释

An alphanumeric part number. (This part number is unique and could suffice as the primary key.
字母數字零件號（此零件號惟一竝且可以用作主鍵。
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 個字母和數字組成）是請求身份騐証或讀取隊列項所需的密匙。
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，由於它可以包含字母數字字符，因此它不適於與 Sphinx 結郃使用，Sphinx 要求索引的每條記錄都有一個惟一的 32 位整型鍵）。