Instead, it accesses an intermediary called a data access service (DAS) and receives a data graph in response.

它访问一个叫做数据访问服务(data access service, DAS)的中介并接收响应中的数据图。

youdao

The task of connecting applications to data sources is performed by a data Access Service (DAS) (see Figure 1).

将应用程序连接到数据源的任务是通过数据访问服务(Data Access Service, DAS)执行的(参见图1)。

youdao