主要问题

The extended particle filter can resolve the problem of particle degeneracy to a certain extent but can not track the saltatory state.

摘要粒子退化和对突变状态的跟踪能力差是粒子滤波在故障预报应用中存在的主要问题。

In the third part, the process, method and conclusion of the sampling survey on the virtual pedagogy in this university are described.

第三部分，介绍了我校网络教学问卷调查和研究的过程、方法和结论，并通过对调查数据的整理和分析，对我校当前网络教学中存在的主要问题提出相应的教改建议。

Through analyzing the advantage and problems of ecology, grassland, farmland, water, wetland, woodland, sandlot and rural ecological environment in the west of Jilin province, we pointed out the countermeasures.

通过分析吉林西部的生态、草原、农田、水、湿地、林地、沙地、村落生态环境等几方面的优势和存在的主要问题，提出了相应的对策。

The current situation of modem sanitary dumping engineering both at home and abroad are introduced. The topics in its study are discussed in detail; its problems and shortcomings are indicated. The development trend and research direction are also discussed.

笔者介绍国内外现代卫生填埋工程的研究概况，详细论述现有填埋场的研究内容，指出其中存在的主要问题与不足，并在此基础上探讨了该领域的发展趋势及研究方向。

With the new method,the amount of scalar multiplications based on those curves can be reduced greatly.

在有效实现椭圆曲线密码体制的研究中，安全椭圆曲线的选取和标量乘法的快速计算又是其中的两个主要问题。

The main problems in screen calibration and the existing solutions are introduced first.Then the screen calibration process and geometry calibration methods are listed.After that,evaluation criterions for screen calibration are discussed,and a generalized color model for projectors color calibration and a visual seamlessness algorithm are presented in detail.

首先介绍多投影显示墙画面校正中存在的主要问题和现有的解决方法；在此基础上，给出了多投影显示墙的画面校正流程和几何校正方法；然后讨论了多投影显示墙画面校正结果的评价标准，提出了投影仪的广义颜色模型和基于搜索技术的视觉无缝方法。

A major problem in seismology is separate the original source signal from other effects.

地震学中的一个主要问题是如何将原始的震源信号从其他影响中分离出来。

This dissertation systematically surveys the development history of stator direct self control of the induction motors. Some main problems in the DSC method are pointed out and a new kind of intelligent DSC method is put forward.

本文系统地综述了直接转矩控制的产生与发展，指出了直接转矩控制方法中存在的主要问题，提出了一种新的智能直接转矩控制方法。

In order to access to be "self-created" state, we must improve the capability of independent innovation of SMEs.

在此基础上，分析了我国中小企业自主创新能力的现状特征和存在的主要问题，并在借鉴国内大型企业和国外中小企业的先进经验基础上，提出了提高我国中小企业自主创新能力的基本思路和对策建议。

Aimed mentioned above technique, an approach to coating constituents, spraying parameters and molding process is made for better resolving the main problem concerning self-hardening transferred coating application to bronge art casting.

从涂料组成、喷涂工艺以及造型工艺等方面进行探讨，较好地解决了自硬转移涂料在青铜艺术铸造应用中的主要问题。

She gently rebuff ed him, but agreed that they could be friends

她婉言拒绝了，但同意作为朋友相处。

If in the penal farm, you were sure to be criticized.

要是在劳改农场，你等着挨绳子吧！