不能分析的

This method overcomes the uncertain multiple factors which can't be solved by the quantification of aridity index.

在灰色系统理论的基础上，提出了用于评价干旱程度的灰色关联分析法，它克服定量化干旱指数所不能解决的不确定多因素。

However, parameter estimation of this kind of model is a time consuming process.

同样该类模型也不能分析水文过程的空间变化。

In general, the design work with traditional measures is done by hand, which cannot meet the needs of the technology and manufacture. So the author has developed a CAD hydraulic design software fit for lower specific speed axial flow runner, which is easily operated by users.The main research work of this paper is as follows:1 Analyzing the main reason of axial flow power station cannot work well under littler volume of flow in some season and putting forward an improving scheme, pointing out the characters of design under abnormal factors.2 Combined with the development of the industry in our country, the abnormal hydraulic design method of propeller turbine is discussed based on present literature, data and experiment results.3 Guided by the design method of software engineering, a suit of hydraulic design software of Lower Specific Speed Axial Flow Runner is programmed by the object-oriented programming language Visual Basic and a straightforward, concise and standard Windows human-computer dialogue interface is designed for the system, which makes the operation of the system very convenient.4 ActiveX Automation technology is adopted as the interface with AutoCAD and the hydraulic drawings are edited, modified by AutoCAD until hydraulic model drawings according with the demand of engineering practice are output.5 To resolve practice problem, the author has designed a lower specific speed axial flow runner for Duowa Power Station through an example.

论文的主要内容有：1 深入分析很多轴流定桨式水电站枯水季节小流量下不能发电的主要原因，提出减容改造方案，并指出超常规条件下的改造设计特点。2 结合国情及行业发展需要，参考现有资料、文献和前人的研究成果，进行低比转速轴流式转轮叶片水力设计方法的研究，对轴流式转轮叶片的奇点分布法水力设计进行了全面的探索，结合现代计算机技术，找到了一种针对特殊条件的轴流式转轮叶片水力设计方法。3 仔细比较多种AutoCAD二次开发工具后，结合本课题的特点，选用Visual Basic语言，综合应用软件工程的设计思想，进行低比转速轴流式转轮叶片水力设计软件的编制，为系统设计了直观、简洁和标准的Windows人机对话界面，便于用户操作；编程时在考虑到设计条件特殊性的同时，尽量做到程序的通用性，使之可用于解决同一类问题；另外，大部分程序还可移植到普通轴流式转轮叶片水力设计中，具有良好的适应性。4 利用ActiveX Automation技术与AutoCAD接口，对AutoCAD进行二次开发，在AutoCAD下实现水力图的自动生成和编辑，直至输出符合实际工程要求的木模图。5 通过算例，为多哇水电站设计了一个低比转速轴流定桨式转轮，解决其在枯水期小流量下不能发电的问题。

One of the primary methods to solve them is numerical method, and the other is Galerkin method, which change partial differential equations into normal differential equations, and then solve them with the traditional method.

小波分析已成为当前应用数学中迅速发展的新领域，它可以解决Fourier分析不能解决的许多困难问题，是近年来在研究工具及方法上的创新，已成为众多学科共同关注的热点。

Fourth, Based on sample data collected in Shenzhen city in 2003, the paper, from various perspectives, calculates nominal VAT rate for goods sold domestically or internationally. By the means of the calculation of the extent of indirect nominal tax burden shifting, we can get the economy tax burden from evaluating some trades'tax burden shifting range of Shenzhen VAT taxpayer. This paper also analyses the problems and the reasons of it and proved that the result of the separate calculation of domestic sales nominal tax burden and export sales tax burden can more realistically reflects the enterprises'nominal tax burden.. Enterprises with higher nominal tax burden can transfer their most parts of their nominal tax burden to the consumers, but the enterprises with lower nominal tax burden have to bear all nominal tax burden. Thus, when measuring the properness of tax burden from the VAT taxpayer, a comparison between economic tax burden and optimum tax burden should be considered.

第四，本文以2003年度深圳市数据为例，从不同的口径分别用经典名义税负测算法和内外销分别测算法测算了深圳市增值税纳税人的名义税负，运用间接税税负转嫁程度测算模型，测算了深圳市增值税纳税人部分行业税负转嫁的程度，进而得出其经济税负，并分析了深圳市增值税纳税人税负存在的问题以及成因，验证了内外销分别测算法得出的结果更能真实地反映企业的名义税负，得出以下结论：名义税负较高的行业，其经济税负不一定高，而名义税负较低的行业，其经济税负并不一定低，在衡量增值税纳税人的税收负担是否适度的问题上，不能简单的将名义税负与最优税负比较，而应将经济税负与最优税负比较。

Choline chloride is one of B race vitamins and is synthesized by oxirane,hydrochloric acid and trimethylamine.

氯化胆碱由环氧乙烷、盐酸与三甲胺为原料合成，是B族维生素之一，是一种不能替代的饲料添加剂，市场上存在造假掺杂行为，对于各种掺杂行为进行分析识别，并提出鉴别方法

Traditional fixing method of the spring causes measuring error and it's unallowable for this miniature spring. So the whole measuring instrument is designed systematically and the development of new fixing and positioning devices are focused on. The new fixture method is analyzed by FEA and results are good.

随后各章论述了新型刚度测试仪器的研制过程，对于传统弹簧的安装夹紧方式在刚度测试中引起的测量误差进行了分析，对于微小型扭转弹簧的刚度测试而言，这是不能允许的超大误差，为此，在系统地设计完成了整体测试装置的基础上，重点研制了新颖的弹簧的定位夹紧结构，对于该定位夹紧结构方案也利用有限元分析软件进行了仿真分析，结果表明比较理想。

Such analysis ignored the problem of dualistic economic structure that could not be ignored in the development of our national economy.

这种分析忽视了我国经济发展中一个最不能忽视的问题——二元经济结构问题。

The results showed that the application of time-frequency analysis to surface myoelectric signal during dynamic contraction may obtain more information that was not available using the traditional spectral analysis techniques.

研究表明将时频分析技术应用于动态收缩期间的表面肌电信号可以增加用传统的频谱分析技术不能得到的信息。

The accomplished software-control system of cellular growth system based on direct current-stimulation has characteristics as below:(1)individualise treatment according to user's requirements such as stimulation-current , stimulation-time and stimulation-channel;(2) operate easily and conveniently based on friendly;(3) could enable cursor switch conveniently and quickly among input frames, and disable corresponding choices to avoid mistaken operation;(4)could analyze the gained data and display the waveform of analytical data;(5)provide set up program of the software.

已完成的细胞直流电刺激实验系统软件控制系统具有以下特点：(1)可根据用户需求选择刺激电流的强度、刺激时间和刺激的通道，同时还可对采样频率进行选择；(2)系统软件操作界面友好、美观；(3)参数设置时控制按钮的光标可以方便、快速地在各输入框间切换，并使不能操作的选项失效，减少误操作；(4)对采集到的特征数据可进行数据分析，并对分析数据进行波形显示；(5)提供了该软件的安装程序。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。