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。
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。
In order to create or manipulate queue items, you need the Secret Access Key (40-character, alphanumeric sequence).
为了创建或操作队列项，您需要使用Secret Access Key(由40个字母和数字组成)。
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