Thanks to a language dedicated to code structure querying (Code Query Language, CQL), developers can ask for any kind of questions about their code bases
通过使用代码查询语言（Code Query Language,CQL，一种能够提供代码结构查询的语言），开发人员能够对他们的代码库提出各种问题
Simple Protocol and RDF Query Language (SPARQL — pronounced "sparkle") is the language typically used to query against that data, as it syntactically matches the structure of RDF itself.
简单协议和 RDF 查询语言（Simple Protocol and RDF Query Language，SPARQL — 发音为 “sparkle”）是通常用于针对该数据进行查询的语言，因为它在语句构成上匹配 RDF 本身的结构。
The idea that use the structure of semantic meaning query tree as middle language is put forward.
提出了语义查询树的中间语言结构，设计了查询语句向语义查询树的转换算法。
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