Most importantly, the r: ranking-scheme element's domainattribute binds the scheme to a specific ranking domain.
最重要的是，r： ranking - scheme元素的domain属性将方案绑定到特定的等级域。
2
The value of the domainattribute on the r:ranking-scheme and r:rank elements is the IRI that identifies the domain.
ranking-scheme 和 r:rank 元素上的域属性的值是识别域的 IRI。
3
The foreach statement, instead of setting domainattribute values from a SQL result set, stuffs the string TODO: set from SQL result into each element of the array of field values.
foreach语句，不是设置来自sql结果集的域属性值，而是将字符串TODO： set from sql result填塞到字段值数组的每个元素。