性能不足

However, as regards the antiseismic behavior of the staggered truss during the course of elasticity-plasticity, there still have insufficient understanding.

然而，对于错列桁架结构体系在弹塑性阶段的抗震性能，还有不足的认识。

It has the following characteristics such as chemical corrosion resistance, aging resistance, gasproof, climate-proof , antiflaming, convenient transportation, simple construction, good performance of sealing and high efficiency of heat transmission, etc.

它克服了传统方式的补口防腐，密封保温存在的不足，具有以下特点：耐化学腐蚀，耐老化，耐气候，阻燃，运输方便，施工简单，密封性能好，传输热效高等特点。

On the base of relevant theories and research achievements, the program for analyzing the hysteretic behavior of the specimen was achieved.

最后结合程序编制过程中的认识提出了程序存在的不足和混凝土理论存在的问题以及进一步研究的建议，为SRCW结构、混凝土结构滞回性能的数值模提供了一定的基础。

At the early 1980s, is an effective mathematic tool to deal with the uncertain or fuzzy knowledge. Rough rule theory has been widely used in information retrieval, digital library, software engineering and knowledge discovery. Its main idea includes acquisition of rough decision rules by reduction of data under the condition of keeping an invariability of classification capacity. And it basically represents a concept by a pair of approximation sets according to the partition on the given data based on the indiscernibility relation. Rough sets theory is well suited to deal with inconsistency of the rough approximations. So it is a new mathematical tool dealing with vagueness and uncertainty, and has found its applications in many areas such as AI, KDD, pattern recognition and classification and fault diagnosis.

主要完成了以下几个方面的工作：(1)对于高速移动机器人车道线跟踪问题中的规则知识获取，首先阐述了模糊逻辑系统的基本特点、工作原理和基本作法，分析了模糊规则知识获取过于依赖专家经验知识、对于每一个细节几乎都需要人工主观经验的参与、难以处理大数据集样本等方面的不足，进而阐述了粗糙集合理论的基本特点、基于粗糙集合理论的规则获取的关键技术和工作原理，为后续章节中经典粗糙集合模型的扩展及粗糙决策规则集的性能分析做好基础；(2)在经典粗糙集理论及其一般扩展的可变精度粗糙集VPRS的基础上，提出了非均匀可变精度粗糙集模型k-VPRS。

Hypercube has many advantages, such as smaller diameter, simple routing algorithm, many parallel paths between any two nodes, and fault-tolerance, on the other hand that the Hypercube nodal degree increased logarithmetically to the number of nodes has limited network population. So we propose a constant nodal degree hierarchical topology to remedy the weakness of Hypercube and take advantages of Hypercube most. Given the definition of FCCN we analyse the basic properties including nodal degree , number of links , extensibility and diameter (maximum network communication delay). Also we proposed a simple and self-routing algorithm applied in FCCN. Although the self-routing algorithm is not optimal, but at more than 82% case it can get the shortest path, and the percent is larger and larger increased with network levels. By the self-routing algorithm the internodal distance is calculated to evaluate the network communication delay more clearly. The average internal distance is in order of the cubic root of the network population that is almost same as logarithmetically relation in a few thousands. FCCN is a highly scalable network due to its recursive construction.

首先在比较了基本互连网络的基础上，看到超立体网络的杰出性能，包括网络直径小、寻路算法简单且为自寻路算法、容错能力好等等，但是由于其节点度随网络的规模的增加而按对数关系增长，使得超立体网络的应用规模受到极大限制，所以为了能最大限度利用超立体网络的优点的同时弥补其节点度方面的不足，作者提出了节点度等于常数4的FCCN网络结构，来最多地利用立方体网络的优点；然后在对FCCN网络进行严格的定义后，分析了网络的节点度、链路数、延伸特性、网络的直径（决定网络的最大通讯延迟）等，并提出了适于FCCN网络的简单的自寻路算法，计算自寻路算法可得到最短路径的比例，看到在多于82％以上的情况自寻路算法都是最优的，而且比例随网络层数的增加而增加；应用所提出的自寻路算法计算了可以更加准确反映网络通讯延迟的参数—网络平均节点距离，计算得到此参数与网络大小的立方根成正比，此比例关系在网络的规模在几千节点以内与对数关系的网络几乎一样；FCCN网络是一高度可扩展结构，这是因为FCCN的递归构成方式，使得网络在增加节点时其原有的拓扑结构可以保持不变，不需对网络进行重新设计，为网络的实用扩展提供了条件；理论分析得出FCCN网络是一种高度可扩展高性能网络的结论。

Since long, because of different requirements when working ,belt running leanly in movement ,the carrying idler's short service life, on-site maintenance big work load and so on many breakdown reasons and crucial understanding insufficiency, have made the carrying idler's function research and manufacture not be broken through, These make the carrying idlers to transport the material in inexpensive economic cost expense not to be able to obtain manifests fully, which is one that hasn't good solution of comprehensive technical difficult problem.

长期以来，由于对皮带托滚在输送机上所处不同工况性能要求，运行中存在皮带易跑偏，易损坏，托滚使用寿命短，现场维护工作量大等诸多故障原因及关键性认识不足，因而造成了对皮带托辊的功能研究和制造无重大技术突破，使皮带输送物料的最佳效果的低廉的经济成本费用未能得到充分体现，是一项没有得到较好解决的综合性技术难题。

This paper does comprehensive searches renewedly, based on the research of theoriginal automatic test and evaluation system of raw silk cohesion. At the same time, theoriginal system is used to do a great deal of experiments, so as to find the deficiencies.Accordingly, the hardware conformation and software design of the system are bothimproved effectively.

本文在原生丝抱合性能自动检测系统的研究基础上，对于该领域文献重新进行了全面综合性地检索，同时利用该检测系统进行了大量实验，发现其不足之处所在，从而对于系统的硬件构造以及软件设计方面均进行了有效的改进。

This paper systematically discuss the realization of the magnetism startor theory in an emanating electrical system.

目前矿山上使用的磁力起动器近二十年在技术上没有大的突破，其功能比较单一，在可靠性、安全性、实用性和技术性能上，存在许多不足。

The subcircuit model can be used conveniently as a black box with good simulation accuracy and leads to better simulation result than BSIM3 models.

子电路具有精确的模拟性能，在电路模拟中，可以作为一个黑匣子直接调用，克服传统BSIM3模型模拟上的不足。

Aiming at the deficiency of the conventional electro-hydraulic proportional valves performance,such as response time and response speed,an ultra-high-speed electro-hydraulic proportional valve is proposed,and the structure of an electro-mechanical converter is put forward using eight pieces tegular Halbach magnet array with gaps.

针对常规电液比例阀在响应时间和响应速度等性能上的不足，设计了一种超高速电液比例阀，并且提出了8片瓦型有气隙Halbach磁化阵列型动圈式电-机械转换器。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。