前缀表示法中，操作符写在操作数的前面。

In prefix notation, the operator is written before its operands.

youdao

前缀和后缀表示法有三项公共特征。

Prefix and postfix notation have three common features.

youdao

企业、销售、财务和业务领域（RDF 表示法中的前缀）表示可在其中定义和解释业务信息的上下文。

The enterprise, sales, finance and business domains (prefixes in the RDF notation) represent contexts in which the business information can be defined and interpreted.

youdao