特征曲线

The semilog and type curves math method is the base and general method for parameter estimation, but the analysis ability is limited and the value of obtained parameter is not precise.

同时，还提出了基于特征元提取的混合人工智能神经网络方法，使得网络对实测曲线信号模式的识别能力更强，能完成更多更复杂的分类任务。

To solve this problem, we selected CONGAS condensate oil/gas reservoir evaluation software to establish a triporosity logging response equation based on the triporosity logging response of natural gas. It was used to calculate the gas/oil ratio and movable hydrocarbon density. The calculated oil/gas saturation and gas/oil ratio were crossplotted to obtain a comprehensive logging interpretation chart.

为此，采用CONGAS凝析油气藏解释评价软件，根据三孔隙测井曲线对天然气的响应特征，通过计算三孔隙测井响应方程，计算出地面条件下的气油比和可动油气密度等参数，将计算的油气饱和度与气油比进行交绘，形成综合测井解释图版。

Two discretestrong damps in the hysteresis loops for both the average velocity and the pinningforce vs the driving force have been obtained in low magnetic fields.

在磁场较低的情形下，涡旋运动的平均速度和所受平均钉扎力关于洛仑兹驱动力的滞后迥路曲线中显现出两个显著的分立的跃变特征。

In this paper, city road is predigested as plan T type, decussating, circular intersection and interchange parametric design maths modeling.

分析了城市道路的特征，研究了平面线形和竖曲线线形的设计算法；提出了基于图形的建模方法。

The writer simplifies and induces thin-bedding medium in the East of China to several seismogeologic models: wedge model; thin-bedding group in which two mediums have equal thickness, thin-bedding group in which two mediums have not equal thickness and formations whose thickness orderly gradates from top to bottom.

本文通过对某油田的若干口钻井的测井曲线和岩性资料进行分析研究，认为我国东部油区的薄互层地层的地质特征为：①大多数地层为低于目前地震勘探分辨率的薄层或超薄层；②地层在横向上相变剧烈；③地层结构具有多种类型。

The roughness shape of ceramic machining surface is analysed by four kinds of test methods: surface profile, scanning electron microanalyses, bearing ratio curve and profile ratio of peak to valley. Ceramics are machined by"plateau honing"to obtain the plateau property and wearability of machining surface. The machining surfaces own its functional surface.

采用表面微观轮廓、扫描电镜观察、表面支承长度率曲线以及表面轮廓峰谷比等四种研究方法，详尽分析了陶瓷材料加工表面的轮廓形状特征，并采用平顶珩磨加工方法，获得陶瓷加工表面的平顶特性，提高了加工表面耐磨性。

The microstructures in the late stage of the creep have been observed by means of SEM and TEM. The results show that the microstructure corresponding to the macro-slip in the third stage of the creep is that a large number of dislocations shear into the rafted γ' phases,decreasing creep resistance of superalloy.

测定了[001]取向单晶镍基合金的蠕变曲线，并利用SEM和TEM对蠕变后期的微观组织结构进行了观察结果表明：蠕变第三阶段结构特征是大量位错切入筏状γ'相。

With the feature points detected from the linked list, the geometrical model of leaf shape is upbuilt by the rational cubic spline interpolation.

以坐标链表检测到的轮廓特征点进行三次样条曲线插值，建立植物叶片的几何模型。

The dynamics equations of soil water vaporizing and ammonia volatilizing hcluding the factors of water and temperature, and the dynamics-like equation of urea transforming into ammonium nitrogen in soil are founded in the paper, by taking the effect of interaction of water and temperature as subject, the dynamic change character of object studied as basis and using principle of chemical dynamic; The empirio-equations of soil water retention curve including temperature and the empirio-equations including temperature between water potential of millet seedling leaves and soil water are founded in order to make the equation of relation between water potential and water content in soil suit the demand of temperature change much better.

本文以水热耦合效应为主题，基于研究对象的动态变化特征，应用化学动力学原理，建立了含水、热因子以及水热耦合效应的土壤水分蒸发、肥料氨挥发动力学方程，以及施入土壤中的尿素转化为铵态氮的动力学型方程；为使水势—含水量关系式更好适应变温条件应用的要求，建立了含温度因子直接表征土壤持水曲线的经验方程，以及含温度因子的谷苗叶水势与土壤含水量关系经验方程。

The dynamics equations of soil water vaporizing and ammonia volatilizing hcluding the factors of water and temperature, and the dynamics-like equation of urea transforming into ammonium nitrogen in soil are founded in the paper, by taking the effect of interaction of water and temperature as subject, the dynamic change character of object studied as basis and using principle of chemical dynamic; The empirio-equations of soil water retention curve including temperature and the empirio-equations including temperature between water potential of millet seedling leaves and soil water are founded in order to make the equation of relation between water potential and water content in soil suit the demand of temperature change much better.

本文以水热耦合效应为主题，基于研究对象的动态变化特征，应用化学动力学原理，建立了含水、热因子以及水热耦合效应的土壤水分蒸发、肥料氨挥发动力学方程，以及施入土壤中的尿素转化为铵态氮的动力学型方程；为使水势—含水量关系式更好适应变温条件应用的要求，建立了含温度因子直接表征土壤持(来源：A9eBC7b4b论文网www.abclunwen.com)水曲线的经验方程，以及含温度因子的谷苗叶水势与土壤含水量关系经验方程。

At the rear was an innovative combination transaxle with the gearbox, clutch, differential, and inboard-mounted drum brakes.

在后面是与变速箱，离合器，差的创新结合变速，和内侧安装鼓式制动器。

For more people can apprecaite and have the master work, there is reproduction painting appears in the market, the large various selection of paint,the high saturation of color plus the plentiful sfumato, to make the reproduction perfect copy and detail as original painting, so as to meet the requirment of amateurs who love art paintings,they do not need to pay high price to get classical paintings.

颜料色域广，色彩饱和度高，色彩层次丰富，图像色彩还原真实，能完美的复制原作，满足艺术爱好者欣赏，艺术爱好者们不用支付昂贵的价格就能拥有经典油画。