查询词典 algebraic closure

Followup of 45 cases, with 0.53 years duration, showed 6 cases had ulcer recurrence. Conclusions: Simple closure operation is effective on acute perforated duodenal ulcer. Normal antiulcer and Hp therapy can effectively decrease recurrence rate of ulcer and incidence rate of complication.

行单纯修补术治疗十二指肠溃疡急性穿孔疗效确切，术后行正规抗溃疡及根除Hp治疗能有效降低溃疡复发率和并发症的发生率。

Transcather closure operation of VSD is less traumatic, and it has good efficacy. Therefore home_made VSD occluder device is worthy to use widespread.

介入治疗室间隔缺损，创伤小，成功率高，手术安全，国产封堵器安全、可靠。

The authers examined the efficacy and safety of ASO,a new self_centering septal occluder consisting of two round disks made of Nitinol wire mesh and linked together by a short connecting waist.68 children with secundum ASD met with the criteria for transcatheter closure received this operation through the two_dimensional echocardiograp...

二十多年来相继研制出了多种经导管房间隔缺损封堵装置，但由于这些装置递送鞘大、操纵繁杂、难以回收及装置的支架断裂、易位和栓塞及术后较高的残余分流率等限制了它们的临床应用［1］。1997问世的Amplatzer房间隔封堵器，因其具自膨性、自

In this section we have obtained some fundamental results on closure operator of poset matroids.

在这一节我们得到了偏序集拟阵闭包算子的一些基本结论。

In Chapter Ⅳ, we study the dependence and closure operator of poset matroids.

第四章研究了偏序集拟阵的相关性和闭包算子。

In Section 5, we define the closure operator of poset matroid 〓 on 〓.

第5节定义了偏序集拟阵的闭包算子。

In this paper, for a class of essentially normal operator , its closure of orbit,, was studied.

讨论了一类本性正常算子的-轨道的闭包：。

The concept of Galois connections for partially ordered objects in a topos is introduced and the kernel operator and closure operator are investigated.

在任意 topos 中引入了偏序对象之间的 Galois 联络的定义，刻画了偏序集对象上的核算子和闭包算子。

After this companys product is and the valve assembles the electrically operated valve or the air operated valve uses, they use for to control the valve opening or the closure, the operator may in the scene manual operation, perhaps the long-distance range carry on the control in the control room.

本公司的产品是和阀门组装成电动阀门或气动阀门后使用的，它们用来控制阀门的开启或关闭，操作人员可以在现场手动操作、或是在控制室内远距离进行控制。同时还提供与各种型号匹配的控制器、控制箱等。

This paper gives definitions of the closure operator, interior operator and complement operator in poset matroids, of which the underlying posets have an order-reversing involution, and then studies some properties of these operators.

本文将主要研究偏序集拟阵和模糊拟阵中的这些生成运算，要点及主要内容如下：一、给出了限制和收缩作用相等的一个充要条件，显示了秩函数在研究偏序集拟阵中的重要作用。

You can snipe the second and third union leaders from this position.

您可以鹬第二和第三工会领袖从这一立场出发。

Aiming at the currently shortage of XML streams quality detecting, this paper proposes a new forecasting method of XML streams quality by least squares support vector machines, which is used the method of XML keys' vector matrix as windows, and vector product wavelet transform to multilevel decompose and refactor the XML streams series, that can fulfill real-time checking demand of XML quality, and ensure constraint, consist- ency and integrality. For even more adapting net load, it proposes a control strategy by weight and adaptive adjustment to ensure XML streams quality.

针对当前XML数据流质量检测存在的不足，提出构建XML键的矢量矩阵作为窗口，利用矢量积小波变换多级分解与重构XML数据流，再结合最小二乘支持向量机对XML数据流质量进行预测的一种方法，满足XML数据流质量重构时实时检测的要求，保证XML数据的约束性、一致性与完整性；为了更好的适应网络负载，采取加权与自适应窗口调整等调度策略充分保证XML数据流的质量检测。