查询词典 characteristic curve

The test results indicate that Lambert cosine radiation characteristic of the new method has a distinct improvement, and the incidence normalized curve approaches to the standard cosine curve in the 0° and 45°. Moreover,with the new mehtod, hemisphere index of reflection uniformity increases from 0.77 to 0.98 at 300 nm and the hemisphere index of reflection averagely enhances by 33% at 200~400 nm.

测试结果表明，新工艺的朗伯余弦辐射特性得到明显改善，在0°与45°入射时，归一化曲线接近标准余弦曲线；300 nm处半球反射率均匀度从0.77提高到0.98；200~400 nm处半球反射率平均提高33%；将其应用于紫外-真空紫外遥感仪器上进行了角度响应测试，漫反射特性明显优于美国2002年发射的同类仪器SBUV/2。

An optical system with refraction and total internal reflection was proposed according to the luminous characteristic of LED and the law of energy conservation. The ordinary differential equations satisfying the spots on the contour curve of TIR refractive and reflective planes were established. The coordinates of points on profile curves were obtained by solving these ordinary differential equations using Runge-Kutta method. The profile curves were acquired by curve fitting of the coordinate spots with software UG, and then TIR model of the projector and data of the surface shape suitable for NC manufacture were obtained.

根据LED的发光特性以及能量守恒定律选择采用折射全反射光学系统，通过建立TIR折射面及全反射面轮廓曲线上的点所满足的常微分方程，利用RungeKutta求解常微分方程得到轮廓曲线上点的坐标，再在UG中对坐标点进行曲线拟合得到轮廓曲线，进而得到TIR模型及适合数控加工的面形数据。

The traditional analog frequency-sweeping instrument, which mostly uses the LC circuit as the frequency oscillator, is more expensive, too much bigger and heavy to carry. It can only display the curve of amplitude-frequency, but can't used to measure the phase-frequency, and can't used to print the curve of frequency response characteristic either. It brings many discommodity to the user.

传统的模拟式扫频仪大多是用LC电路构成扫频振荡器，它不仅价格昂贵，体积庞大，而且只能显示幅频特性曲线，不能得到相频特性曲线，更不能打印被测网络的频响曲线，给使用者带来诸多不便。

The curve length of the QRS complex is longer than that of other parts of the ECG in the same interval, so that the ECG curve length characteristic is suitable for QRS dctcction. Our algorithm not only detects the QRS complex position but also its duration.

该算法根据QRS复合波的曲线长度在一定的等时间间隔内大于ECG其他部分的特性进行QRS波的信息提取，其不但检测QRS波的位置，而且同时检测出QRS波的宽度。

In the chapter 3, the development and characteristic of TM image and DEM is explained generally. In following chapter, how to measure backwater curve using remote sensing and DEM is particular expounded, including revise the backwater curve using water level data which is measured by hydrology station.

在第三章中概括性的叙述了TM遥感影像与DEM的发展过程及特点，在随后的章节中详细的阐述了遥感影像结合DEM测定水库回水曲线以及利用水位站点实测数据进行校正等内容。

A kind of method adopting polynomial approaches to match the nonlinear curve of looper tension moment is put forward on the base of analyses of the curve characteristic and project practice.

通过对带钢张力矩计算理论公式的分析并结合工程实际，提出了一种采用多项式逼近来拟合活套张力矩非线性曲线的方法。

The curve of a Hall-displace sensor possesses the characteristic of parabol a by analysing the character of the curve obtained by normal polynomial fitting.

通过对 某霍尔位移传感器位移、电压值的多项式拟合曲线的特点进行分析，发现该传感器曲线具有抛物线的特点，所以采用含开方项的多项式拟合。

With the special kinematics and kinetics law of major-minor connecting rod mechanism in gas engine,based on expression function integrated into regular curve and optimizing module provided by UG software,the optimized structural parameters of major-minor connecting rod mechanism were educed through minimizing the differences tribology characteristic between in piston of major cylinder and piston of minor cylinder,and kinematics and kinetics characteristics were reappeared with emulational curve mode.

根据关节式曲柄连杆机构独特的运动学、动力学规律，利用UG软件所提供的表达式、规律曲线和优化等模块，给出使主、副气缸的摩擦学特性尽量保持一致的最佳结构参数，并以仿真曲线的方式再现了运动学和动力学特性的变化规律。

Some specific problems in connection with blade modeling, such as spanning characteristic mesh, interpolation of curve face modeling, precise presentation arc by second order NURBS curve, node interpolation algor...

深入探讨了在叶片构造过程中遇到的剖分网格确定、插值曲面构造、圆弧的二次NURBS曲线精确表示、NURBS曲线节点插入算法及其升降阶等关键性技术问题。

In the fourth part, the experiment equipment is established, images are captured through CMOS, and the result of experiment is analyzed and the calibration curve is drawn, due to the non-linear characteristic of the used light-sensitive transducers calibration, the method of using piecewise linear line to approximate CMOS calibration curve is proposed, which decreased the measurement errors greatly, analyzed the measurement errors and proposed the methods of minishing errors.

第四部分搭建了实验装置，通过CMOS采集了大量的图像，分析了实验结果，做出了标定曲线，鉴于标定曲线的非线性特征，采用逐段折线逼近该标定曲线的方法，大大减小了误差，并进行了误差分析和提出了减小误差的方法。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。