反曲线

Theemphasis is to build anomalistic curves and surfaces from numbers of datum.

着重阐述了由大量数据点进行不规则曲线、曲面反求的完整技术。

Based on the theory of Core-Core dispersion,the apparent amplitude frequency was computed using the complex resistivity on elliptical sphere with central gradient array.

基于柯尔-柯尔频散理论，采用中间梯度上椭球体的复电阻率计算相应的幅频率，讨论椭球体的充电率、中心埋深和长轴倾角对幅频率异常和曲线形态的影响；研究幅频率资料的反演算法。

It is the first laboratorial experiment results of self-volume deformation of MgO concrete applied to the arch dam foundation of Dongfeng hydropower station in Guizhou province, the laws of self-volume deformation of MgO concete is conducted, the long-term expansion deformation value is reckoned, the arc tangent curve model of the concrete is presented to describe the characteristics of expansion deformation of the MgO concrete.

本文以在国内外首次将MgO混凝土应用于主体工程的贵州东风水电站拱坝基础混凝土的室内自生体积变形成果为例，对MgO混凝土自生体积变形的规律进行了研究，提出了MgO混凝土自生体积变形的反正切曲线模型，用以表达MgO混凝土的膨胀变形特性和推算MgO混凝土的长期膨胀变形值。

In order to clearly understand the nature of exchange bias of the FM/AFMbilayers, we first discuss the influence of the biquadratic coupling field on both thehysteresis loops and the dependence of exchange bias field on the applied magneticfield angle.

为了更加清楚地认识铁磁／反铁磁双层膜中交换偏置的本质，我们首先研究了双层膜界面中双二次耦合对磁滞回线和交换偏置场随外磁场角度变化曲线的影响。

In this research a new mathematical model - cubic polynom with two given derivatives at end points - was proposed which can good match the S-shpae curve.This model has a number of analytical features:describing the geographic phinomena prosesses in three hierarchies (textural fractal,structural fractal and state fractal); the boundary values of the structural fractal can be considered as the boundary values of interval of scaleless.

在研究中提出了扩展分维表达函数：带导数三次多项式，它能很好地表达反S形分布曲线，具有一系列解析特征：可从三个层次（纹理分形、结构分形和态势分形）上描述地理现象或过程；其中结构分形的边界可近似地看作是非扩展分维无标度区的上下界。

Working condition of GC system was established perfectly. With the internal standard of butanone, volumetric concentration of benzene was calculated by the calibration curve.

该方法确定了最佳阀切换反吹时间和操作条件，以丁酮为内标物，通过建立苯的校正曲线定量计算样品中苯的体积浓度。

The Geo-RS model of biomass is not only considered the vegetation spectral ,but also the other relative information, the accuracy of this model is better than the cubic curve fitting, but workload is large and the model is complex .

生物量的遥感地学模型由于不仅仅考虑到了植被的光谱信息，也考虑到了其他的相关信息而反演精度高于三次拟合曲线，但是工作量大，建模复杂。

We used DGY 2 permanent measurement meter to measure the magnetic properties and demagnetization curve .

对 15 78B7基一系列不同工艺条件下制取的取向度不同的烧结磁体，用 X-射线衍射和磁性测量来分析永磁体织构和取向度与反磁化过程的关系，用 DGY- 2型永磁测量仪测试磁体退磁曲线。

The relationship of logging and seismic data was established through the wellside strata correlation.

此外，对测井属性外推插值到井外的方法——基于约束插值的反演理论进行了探讨，从理论上解释了拟测井曲线反演的有效性。

Then the surface reconstruction that includes data fitting and fairing technology is studied mainly and many fitting methods are analyzed in all respects, including compare their advantages and disadvantages, At last some reasonable methods are selected and is used in cams reverse engineering that are parts of cigarette machine at high speed, At the same time the precision of the reverse result is analyzed in detail.

然后对曲线曲面重构即数据拟合及光顺技术这一关键技术做了重点研究，从不同角度研究了多种拟合方法，比较了它们的优缺点，选择了比较合理的拟合方法对高速卷烟机上的凸轮进行反求，并对反求结果进行了详细的精度分析。

Chrysanthemum of 10 thousand birthday is lax to edaphic requirement, with the arenaceous qualitative loam with fecund, good drainage had better.

万寿菊对土壤要求不严，以肥沃。排水良好的砂质壤土为好。

He unstepped the mast and furled the sail and tied it.

他拔下桅杆，把帆卷起，系住。