selective aggregation的意思|示意

Being able to push down aggregation operations or very selective predicates to CF (i.e. those that filter out many rows) will result in the greatest benefit.

如果能将聚合操作或选择性非常强的谓词(即能过滤掉很多行的谓词)下推到CF，就可以获得最大的益处。

Polymer flocculation is always recognized as an effective method of selective aggregation of fine particles of weak magnetic minerals.

高分子絮凝一直被认为是微细粒溺磁性矿物选择性聚团的有效方法之一。

Conclusions - : Our data indicate that the selective blockade of key signaling pathways of platelet adhesion and aggregation has a different impact on stroke outcome and bleeding complications.

结论——：我们的数据表明：有选择的阻断血小板粘附和聚集的关键性信号通路，会带来不同的关于卒中后果和出血并发症方面的影响。