NHibernate-对列使用自定义sql查询

有没有办法将自定义sql与NHibernate一起使用？我想对特定列使用复杂的sql

例如：

select id, viewsCount, commentsCount, 
  0.2 * viewsCount / (select top 1 viewsCount from articles where isActive = 1 order by viewsCount DESC) as priorityViews, 
  0.8 * commentsCount / (select top 1 commentsCount from articles where isActive = 1 order by commentsCount DESC) as priorityComments, 
  round(0.2 * viewsCount / (select top 1 viewsCount from articles where isActive = 1 order by viewsCount DESC) +  
  0.8 * commentsCount / (select top 1 commentsCount from articles where isActive = 1 order by commentsCount DESC), 1) as priority
from articles

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可以在的映射中或在的查询中执行此操作