法

Coordinate sequence method is made up of the instruct information of polygon boundary x, y coordinate. It is the easiest polygon vector encoding method. The file structure of this method is easy, but because of the polygon boundary has stored two times, it will produce data redundancy, moreover, short of neighbor threshold information; Tree index encoding method make all the boundary points digitizing, store the coordinate sequence, connect the point index to boundary line, and then connect the line index to other polygons, so as to the tree index structure has came into being. It eliminates neighbor polygons boundary data redundancy problems; Topology structure encoding method is a method which by setting up a complete topology relationship structure, resolve the neighbor threshold and island information process problem. However, it makes arithmetic more complicated and makes database bigger.

坐标序列法是由多边形边界的x，y坐标对集合及说明信息组成，是最简单的一种多边形矢量编码法，文件结构简单，但多边形边界被存储两次产生数据冗余，而且缺少邻域信息；树状索引编码法是将所有边界点进行数字化，顺序存储坐标对，由点索引与边界线号相联系，以线索引与各多边形相联系，形成树状索引结构，消除了相邻多边形边界数据冗余问题；拓扑结构编码法是通过建立一个完整的拓扑关系结构，彻底解决邻域和岛状信息处理问题的方法，但增加了算法的复杂性和数据库的大小。

In order to decrease the measuring error of signal processing in laser Doppler velocimeter,frequency spectrum correction methods for laser Doppler signal were proposed.

在激光多普勒测速仪中，为了减小由信号处理算法带来的测量误差，提出运用频谱校正算法对多普勒信号的频谱进行校正，详细阐述了能量重心法、比值法和相位差法3种离散频谱校正算法的基本原理，运用这3种算法对理想正弦信号进行仿真，并运用比值法对信号施加不同频率和信噪比的噪音下的正弦信号和实测的多普勒信号进行仿真及实验研究。

The viscometry is used to determine average number molecular weights of polyhydroxyalkanoates taking chloroform as solvent.

以氯仿作溶剂，用黏度法测定了多聚羟基烷酸的分子量，摸索了检测的最佳温度与溶液浓度，比较了黏度外推法与黏度单点法测验结果，建立了黏度法测定多聚羟基烷酸平均分子量的操作方法。

PartⅡFeasibility of vitrifying normospermic samples using droplets without cryoprotectans Objective Discuss the feasibility of droplets to vitrify normospermic samples without cryoprotectants. Methods Normal prepared sperm were frozen by conventional freezing protocol and non-cryoprotectant freezing in droplets respectively. Freezing in droplets means freezing sperm in every 10ul drop. After thawing, compared the two groups'sperm mobilities.

第二部分微滴法无保护剂玻璃化冷冻正常精子的可行性探讨目的探讨在不添加冷冻保护剂的情况下微滴法玻璃化冷冻正常精子的可行性方法收集16份正常精液标本，上游处理后分别进行慢速冷冻和微滴法冷冻，微滴法即用拉细巴氏管将标本形成10ul的液滴，直接投入液氮内冻存，复苏后镜检其活动率。

It's equipped with anti-liquid overflow breather valve, anti-aging overhead nitrogen charging valve, thermometer, volumeter and asphalt testing valve and reserves feed opening interface flange, high level and high high level alarm flange, blender reserved hole flange and discharge opening flange used to output asphalt.

配备防冒液呼吸阀、防老化顶置充氮阀、温度表、容量计、沥青检测阀，并预留进料口接口法兰、高位及高高位报警接口法兰、搅拌器预留孔法兰和输出沥青的卸料口法兰。

The container is equipped with anti-puffing pressure vent valve, anti-aging overhead nitrogen valve, thermometer, volumeter, asphalt sensing valve, reserved charge hole interface flange, high-level and super-high level alarm interface flange, flange at prepared mixer hole and flange at output asphalt discharge hole.

配备防冒液呼吸阀、防老化顶置充氮阀、温度表、容量计、沥青检测阀，并预留进料口接口法兰、高位及高高位报警接口法兰、搅拌器预留孔法兰和输出沥青的卸料口法兰。

After decomposition of Mn-Ag concentrates and raw Ag powder samples with HCl-HNO_(3)-H_(2)SO_(4), Ag in the sample solutions was determined by KSCN- volumetry .

对某地锰银精矿及冶炼半成品———粗银粉，采用湿法溶样后，直接采用硫氰酸钾容量法测定Ag，对w为0.22%～70.96%的样品，测定结果与原子吸收法以及火试金容量法结果相符。

Directed against the problem of stability optimal design on reinforced wainscot of composite materials a kind of mixed optimization algorithm with the combination of mixed penalty function method, Powell method, golden section method, improved coordinates alternation method and genetic algorithm was put forward.

针对复合材料加筋壁板的稳定性优化问题提出了一种用混合罚函数法、Powell法、黄金分割法、改进的坐标轮换法和遗传算法相结合的混合优化算法。

It is different from the finite element method which uses the calculus of variation to construct the element-based approximate equilibrium equation. It does consider the equilibriums of forces on the inter-element boundary, which are neglected in the finite element method through the weak formulation.

这种方法跟有限元素法不同，因为有限元素法是采用变分法建立各个元素的近似平衡方程式，这种方法也考虑元素与元素相连接的边界上的力平衡条件，而在有限元素法的推导过程中我们忽略了这种条件。

This paper analyses the stability of subgrade embankment during construction and after completion on sloped weak ground using limit equilibrium theory.

为正确评价国家重点建设工程渝怀铁路斜坡软弱地基填方工程的稳定性，按照极限平衡法的基本理论，运用 Bishop法、Janbu法及 Ordinary法等，分析了在斜坡软弱地基上填筑路堤时其稳定性受断面参数，如地层坡度、软弱土层厚度、路堤高度而变化的影响趋势。

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。