参数化的

Regularity is an important algebraic property of parametric curve and surface, which depends on the parameterization of parametric curve and surface.

正则性是参数曲线曲面的重要代数性质，是由参数曲线曲面的参数化决定的。

Both the effects of vibration parameters, fluidization parameters etc on properties of fluidized and mutual effects between parameters were studied.

文中研究了振动参数、流化参数等对流化床特性的影响及参数之间的交互作用。

The main contributions are included as follows: the first, the research of technology of parametric model and establishment of part library, the second, the study of the technology of automatic assembly, the third, the study of functions of Unigraphics and approach of quadratics exploitation of UG .Used this technology in transmission CAD system, the fourth, the establishment of the parametric transmission CAD system using technology of automatic assembly.

本课题主要工作包括以下几个方面：第一，研究分析参数化特征造型技术的理论，并且将此理论应用于零件库的建立，总结零件库的多种实现方法；第二，分析研究机械产品自动装配技术的实现；第三，研究分析UG软件的功能和对其进行二次开发的途径和技巧，以及该软件在变速器CAD系统中的应用；第四，将参数化特征造型技术和自动装配技术的理论，结合UG软件的二次开发，应用于变速器CAD系统中。

According to parameterized complexity theory, a decidable parameterized problem is fixed-parameter tractable if and only if it can be kernelized.

在参数计算与复杂性理论中，一个参数问题是固定参数可解的问题当且仅当该问题是可核心化的。

Based on summing-up of the existent design method of two-dimensional and three-dimensional inlets,a parametric design method of two-dimensional hypersonic inlet was established by analyzing the restrictiveness and sensitivity of the geometric parameter of the inlet.

在归纳二维进气道和三维侧压式进气道设计方法的基础上，通过参数制约关系分析和参数敏感性分析，提出了二维进气道的参数化设计方法。

The new concept of slaking factor combined by the thickness,temperature, flow rate of green liquor; and the slaker temperature,and number of CaO is presanted, and the closed control is realized with slaking factor as main parameter.

提出了将绿液的浓度、温度、流量以及消化器温度和理论上所需氧化钙量5个参数综合成为一个参数——消化因子的新概念，并以消化因子为被控量进行闭环控制；建立了过量灰与消化因子等参数关系的推断数学模型；克服了120min大纯延迟时间的影响；实现了过量灰最佳值控制和苛化过程参数优化。

Firstly, by analyzing existing models of predicting concrete carbonation and its influencing factors, a practical model of predicting the depth of carbonated concrete is proposed in this thesis, which takes the compressive strength of concrete as the main parameter and considers influence of temperature and moisture of environment, construction factors, stress condition and density of CO2 in the environment, and plenty of spot-data has been used to verify the model; By means of regression analysis of the spot-data, the calculating model of uncarbonated remainder is formulated; Considering the randomness of concrete carbonation, the paper put forward a probability analysis method of concrete carbonation span-life.

首先，论文在分析已有混凝土碳化预测模型与影响因素的基础上，建立了以混凝土抗压强度为参数，考虑环境温湿度，施工因素，应力状态及环境CO_2浓度影响的混凝土碳化深度实用模型，并利用大量工程实测数据对模型进行了验证；通过对实际工程检测数据的回归分析，给出了碳化残量的计算公式；考虑到混凝土碳化的随机性，提出了混凝土碳化寿命的概率分析方法。

To reduce the computational burden under the parametric model of mixed-spectrum, the proposed method decouples the estimation for parameters of sinusoids and of AR clutter.

该方法利用混合谱参数化模型，通过对正弦参数估计及AR杂波参数估计的解耦处理，降低了谱估计过程的计算复杂度。

In order to assurance the maching accuracy and surface quality of steam turbine blades,based on typical CAD/CAM software Pro/Engineer 2.0,the flow diagram of parametric modeling and maching of turbine blades is drawn;The 3-D entity model of Steam Turbine Blade is upbuilt by parametric modeling method,and the fit-method with NURBS is extracted to smooth the curve surface,and the matrix expression of NURBS is deduced to make the surface more accurate;Then based on it's CAD model,the maching technology process...

为保证汽轮机叶片的加工精度和表面质量，以典型的CAD/CAM软件Pro /Engineer Widefire2.0中文版为基础，绘制了汽轮机叶片参数化设计加工的流程图；用参数化建模方法建立了叶片的三维实体模型，提出用NURBS曲线拟合方法进行光顺处理，并推导出NURBS的矩阵表达式便于截面型线的拟合，进而使叶片的造型更加精确；在CAD模型的基础上，分析了叶片的加工工艺流程，并用软件的CAM功能对叶片进行数控加工仿真，生成了NC代码。

Based on the characteristics of parameterized design and key technologies of knowledge based engineering, and specially according to the characteristics of the construction, figure, assembly-parameter of bicycle frame design, the article has achieved repeated using of experiential parameter and knowledge by adopting methods such as automatic reading experiential datasheet, computing parameter by making use of program, manual data-input or modifying and so on. Based on analyzing the characteristics of Rear End design and the associated characteristics with Chain Stay and Seat Stay, different design methods are analyzed in detail, and rapidly assembling of Rear End, Chain Stay and Seat Stay is achieved by using the method of combining top-down-assembly with down-top-assembly method. Based on analyzing special technologies and UDF characteristics, the repeated using of different sectional shapes by using UDF technology on the tube section design is also achieved, and this will greatly shorten the time spent on fixing the dimensions and orientations on sketches.

在探讨了参数化设计技术特点和知识工程关键技术的基础上，针对自行车车架设计中的结构、形状、装配参数特点，分别采用了读入经验数据表、参数程序求解、手工录入或修改方法实现车架设计经验参数和知识的重复利用；在分析自行车后叉片设计特点及与平、立叉的关联特性的基础上，对不同的设计方案进行了详细分析，并采用自顶向下和自底向上相结合的方法，实现了后叉片的快速装配定位与平、立叉设计相关联；在分析了特征技术和UDF特点的基础上，将UDF用于管件截面的设计上，使各种截面形状能不断重复利用，大大节省了约束草图尺寸和位置的时间。

For a big chunk of credit-card losses; the number of filings (and thus charge-off rates) would be rising again, whether

年美国个人破产法的一个改动使得破产登记急速下降，而后引起了信用卡大规模的亏损。

Eph. 4:23 And that you be renewed in the spirit of your mind

弗四23 而在你们心思的灵里得以更新