semantics of data meaning in English

数据的语义学
数据语义学

In other words , an ontology provides an explicit conceptualization that describes semantics of data , providing a shared and common understanding of a domain
另一个说法，本体提供了用来描述数据的含义的显式概念，从而提供了对某个领域的共享的和公共的理解。
An implementation should define the exact semantics of data source identifiers ; however , it must be possible to determine a data source identifier directly from the bytes that comprise the data source
实现应该精确地定义数据源标识符的语义；然而，必须有可能由包含数据源的字节直接地确定数据源标识符。