纵的分析

Existing principles of transformers main protection, especially in criterions of magnetizing rush current, are analyzed deeply in this paper. The author points out questions in existence, and describes a new method based on the sum of positive sequence active power flowing into transformers from each terminal.

本文就现有的电力变压器主保护原理，特别是各种励磁涌流判据，进行了较深入的分析，指出了存在的问题，并提出了新的基于正序功率的变压器纵差保护原理。

The surface crack on the medium and heavy plate of high-strength steel, which was newly developed by Jinan Steel, was analyzed systematically. The surface cracks of high-strength steel mainly include smaller slit, starlike crack or resillage.

对济钢新开发的高强钢中厚板出现的表面裂纹进行了系统的分析，高强钢裂纹主要表现为小纵裂、星形或网状裂纹。

The characteristics of fatigue cracking, in rib to crossbeam joints, rib to deck plate joints and rib to rib joints, are understood by the analysis of the test results. The regression line and 95% confidence lower limit of △σ-N curves are given for these joints. Their available fatigue strength is suggested for fatigue design.

通过对试验结果的分析，了解了纵肋与横梁连接、纵肋与盖板连接和纵肋与纵肋连接的疲劳开裂特点，给出了这些连接细节△σ—N曲线的回归线和95%置信下限，提出了疲劳设计时可采用的疲劳强度。

This paper discusses synchronization problems which L90 line differential relay loss packets and the key operation mode and method in line differential with telecommunication system.

论文通过对华北电网 5 0 0kV线路纵联差动保护装置通信故障的分析，提出了故障的解决方案，并着重讨论了复用保护应用中的同步问题。

The characteristics of the three main parts of mono-pulse slotantennas——longitudinal radiating slot, center-inclined slot and magic T using couplingslot, are analyzed. Also the influence of the design parameters, such as the length and width of the slot etc., are analyzed. The engineering curves of design are given, and some beneficial conclusions are gained too. These also give powerful supports for the design of slot antennas.

针对毫米波单脉冲波导缝隙天线的三个主要组成部分——波导宽边辐射纵缝、波导宽边中心斜缝和宽边缝隙耦合魔T的特性及其各项设计参数(如缝隙长度、宽度、半高波导、全高波导等)对性能的影响进行了较为全面、详细的分析，给出了相应的工程设计曲线，得到了一些有益的结论，为高性能波导缝隙阵列天线的设计提供了有力的参考。

Through analysing and comparing the plain X-ray films and longitudinal-section tomographs of 11 cases of the injury, it was suggested that the latter could clearly show the shape, size and range of the intra-articular fracture and obtain The com-plete tcmography of the fracture, and thus benefit the clinical typ...

通过11例该类损伤患者的X线平片及纵断作层片的分析比较，认为纵断体层摄影可清晰显示关节内骨折的形状、大小、范围，获得完整的骨折分层像，从而有利于临床分型，对骨折的诊断及指导治疗有较大的应用价值。

Three horizontals are the representation layer, the operation layer and data layer.

首先，对软件需求做了深入的分析，通过数据流图和数据字典与用户进行沟通，了解用户对系统的功能要求等；其次，介绍了软件设计的过程，分为三纵三横，三纵即：概念结构设计、逻辑结构设计、物理设计三个阶段，三横即：表现层设计，业务层设计和数据层设计。

First, I have made thorough analysis to the software demand, carried on the communication through the Data Flow Diagram and the data dictionary with the users in order to get the system function request of users and so on. The next, I have introduced the process of software design, which is divided into three verticals and three horizontals. Three verticals are the concept structural design, the logical organization design and physical design. Three horizontals are the representation layer, the operation layer and data layer.

首先，对软件需求做了深入的分析，通过数据流图和数据字典与用户进行沟通，了解用户对系统的功能要求等；其次，介绍了软件设计的过程，分为三纵三横，三纵即：概念结构设计、逻辑结构设计、物理设计三个阶段，三横即：表现层设计，业务层设计和数据层设计。

The next, I have introduced the process of software design, which is divided into three verticals and three horizontals. Three verticals are the concept structural design, the logical organization design and physical design. Three horizontals are the representation layer, the operation layer and data layer.

首先，对软件需求做了深入的分析，通过数据流图和数据字典与用户进行沟通，了解用户对系统的功能要求等；其次，介绍了软件设计的过程，分为三纵三横，三纵即：概念结构设计、逻辑结构设计、物理设计三个阶段，三横即：表现层设计，业务层设计和数据层设计。

The next, I have introduced the process of software design, which is divided into three verticals and three horizontals. Three verticals are the concept structural design, the logical organization design and physical design. Three horizontals are the representation layer, the operation layer and data layer.

首先，对软件需求做了深入的分析，通过数据流图和数据字典与用户进行沟通，了解用户对系统的功能要求等；其次，介绍了软件的过程，分为三纵三横，三纵即：概念结构、逻辑结构、物理三个阶段，三横即：表现层，业务层和数据层。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。