查询词典 closure

River closure is an integral part in the course of building water conservancy projects.

施工截流是水利水电工程施工中的重要环节，关系到整个工程全局。

The ring C is called the integral closure of A in B.

环C叫作A在B中的整闭包。

In this paper,we give the representation of integral closure of a cubic extension about general Neotherian unique factorization domain (2,3 are not units). Then we give a series of integral number about a cubic extension.

本文在前人研究的基础上，去掉2，3可逆的这一条件，给出了诺特唯一分解环上的三次扩张的整闭包的描述，并由此刻画了一批该扩张下的整元。

Let OKbe the integral closure of the polynomial ring A = Fq in K, and UK be the group ofunits of OK .

设OK为多项式环A = Fq在K中的整闭包， UK为OK的单位群。

In chapter 4, Based on the orthogonality relations and duality of C-algebras, we study the decompositions of C-algebras, and give a Fourier inversion formula on C-algebras, which generalizes the Fourier inversion formula on the center of a finite group algebra over complex. As an application, we characterize the integral closure of C-algebras over the ring of integers, and show a necessary and sufficitient condition for elements of C-algbras being algbraic integral over integers.

第四章 我们应用C-代数的正交性及对偶性刻画了C-代数的一个分解，给出了C-代数上这个完全分解的Fourier反演公式，从而推广了Z分解的Fourier反演公式；作为Fourier反演公式的一个应用，我们刻画了Z在整数环Z上的整闭包，进一步我们研究了C-代数在整数环Z上的整闭包，给出了C-代数在整数环Z上为整元的一个充要条件。

Neotherian unique factorization domain; cubic extension; integral closure

诺特唯一分解环；三次扩张；整闭包

Tectonic evolution of Lanping basin, controlled by closure of Palaeo-Tethys and collisional orogen between India plate and Asia continent, has undergone three evolutional stages, i. e., intracontinental rift, sag basin and strike-slip basin.

兰坪盆地的构造演化受控於古特提斯的闭合及印度与亚洲大陆碰撞的造山作用，盆地经历了陆内裂谷、拗陷盆地和走滑盆地3个阶段的发育过程。

Early in Yuan dynasty, the development of seal is influenced by various culture elements, scholars and calligraphers automatically find and invade the old territories singly dominate by craftsmen for thousands years, take unified action with them to force the closure of dust and get it a nirvana. Since then, the seal is changes into a kind of artistic creation and embodies the nature beauty of random, free and simple called "beauty comes from involuntariness".

早在元代，印章的发展受到各种文化因素的催化，一些文人学士仿佛在那里面感觉到、发现到了什么，开始闯入了这块由工匠独支撑了几千年的古老领地，与其结伴共伍，鼓努磨洗，力去封尘，使之漏射出缕缕新的光华，从此，印章被作者自觉地作为一种艺术创造而出现，展示了一种随意的、自由的、朴质的所谓"无意于佳而佳"的天然之美。

NA :YAG laser iridectomy is the effective and safe method for angle-closure glaucoma.

NA：YAG激光虹膜切除术是一种治疗闭角型青光眼的安全有效的方法。

Objective To measure and evaluate the anterior segment parameters of early primary angle-closure glaucoma patients before and after periphery iridectomy by Pentacam system in order to monitor quantatively the anterior chamber conditions and provide a new way for the screening, study of mechanism and therapy of early primary angleclosure glaucoma patients.

目的通过Pentacam眼前段分析系统在周边虹膜切除术评估的应用，以期为早期原发性闭角型青光眼患者提供一种新的辅助检查方法。

So it was last week in Selma , alabama.

上星期在亚拉巴马州塞尔马市发生的事件也是这样一个转折点。

The group also spearheads various social programs in China.

该组织还带头参与中国的各种社会活动。