Setel塞泰尔setv.放置；设定；确定；规定；调整；分配；(太阳)落下去；将（宝石）镶嵌到（某物）；配乐n.集合；组合；日落；一套；一副；一局比赛；舞台；姿态；头发的定型adj.规定的；固定的；不变的；做好准备的；固执的；不自然的set our face towardsvt.企图(着手；决心)set up a corporation建立公司set the ball rollingvi.开始活动set user informationv.设置用户信息set gas purification湿煤气净化set sb. at liberty释放某人, 恢复某人的自由set her face towardsvt.企图(着手；决心)set-aside patterns退耕模式set your heart aglow温暖你的心房Set sb. up as Pope立某人为教皇

1. This reduction also enables us to obtain some information about the number of colourings of a graph with a given set of colours.
   这种化法也能使我们得到关于用给定的颜色集对一个图的着色的数目的某些信息。
2. Then the IIS after the object reduction is investigated through the set pair analysis.The attribute dependency is obtained and the attributes are further reduced.
   用基于集对分析方法的改进集对粗集模型对已进行了对象约简的不完备信息系统进行分析，找出各个属性之间的依赖关系，进一步进行属性约简。