例句與造句

1. The basic elements of our approach to frames are contain in section one . a sequence of victors on a hilbert space h is called a frame if there are constants , such that as it ' s a important way to frame study by operators , we introduce preframe operator and frame operator associated with a frame { fi } i n and show corresponding relations between several frames and their preframe operators . also , we introduce some definitions such as similarity of frames , weak disjoint , disjoint and strong disjoint
   第一節(jié)闡述hilbert空間一般框架理論，所謂hilbert空間h上的框架是指h中的一列元素{ fi正n滿足： 3a ， b > 0 ， v正" ，有cx ， atiftl ’ ( < f ， fi > 1 ’三biif2 ii2 i = 1通過算子來研究框架是框架研究的主要方法，為此我們引入預(yù)框架算子和框架算子，并列出各種不同框架和其相應(yīng)預(yù)框架算了之間的對應(yīng)關(guān)系，為后文需要我們還列出了框架的相似，弱不交，不交和強(qiáng)不交的概念。
2. It's difficult to find preframe in a sentence. 用preframe造句挺難的