误差曲线

Meanwhile, result comes out that seven fossil samples are mostly evergreen Araucarioxylon, deciduous species prapably exists, but their fixed numbers of growing year are extraordinarily variant; Analysis of ariance indicates that, imposing ray cells, radial tracheid diameters-, the ratios of ray cells to radial tracheid diameters on distinguishing seven samples is doable as a whole, while not fitting for individuals.

经方差分析可以看出，利用射线直径、管胞直径和射线管胞比可以在总体上区分各标本，但对个别样本不适用；射线高度这一性状在各标本间差别很小，不能区分；结果认为：标本2和标本6的性状最相近，为相同的种类；标本1、4、7可能为同一属；对方差和CSDM曲线的综合分析认为，标本1、3、6的生长年限存在一定的区别，可能导致在方差分析上出现些许误差。

The structure is novel,the technology is advanced,the structure is novelty,the operation is easy and flexible and maintenance is convenient all kinds of material's mechanical performance's arylate and the test of production's quality.It is used for scientific research department advanced school or technical secondary school and enterprise.

技术参数： 1、量程范围：5KN 力值精度：示值的±0.5%以内 3、试验速度：0.1mm/min--500mm/min 速度允许误差：示值的±1.0%以内 4、有效拉伸距离：900mm 5、位移测量精度：示值的±1.0%以内 6、变形测量精度：示值的±1.0%以内 7、采集速率：50次/S 8、打印功能：打印测试后的试验数据及曲线 9、电源电压：AC220V 50Hz 10、外型尺寸：550mm×450mm×1600mm 11、重量：75kg

ABSTRACT:The present paper is mainly introduced GPS the basic principle, the system composition, the technical characteristic, the error source and the application method and the sequence of operation, and carry on a lofting, the curve lofting as well as using GPS in the project survey carry on the boundary point survey in the cadastration, carries on the precision analysis to the measurement result.

论文摘要：本论文主要介绍GPS的基本原理、系统组成、技术特点、误差来源和使用方法及操作步骤，并利用GPS在工程测量中进行点放样、曲线放样以及在地籍测量中进行界址点测量，对测量结果进行精度分析。

ABSTRACT摘要: The present paper is mainly introduced GPS the basic principle, the system composition, the technical characteristic, the error source and the application method and the sequence of operation, and carry on a lofting, the curve lofting as well as using GPS in the project survey carry on the boundary point survey in the cadastration, carries on the precision analysis to the measurement result.

论文摘要摘要：本论文主要介绍GPS的基本原理、系统组成、技术特征、误差来源和使用方法及操作步骤，并利用GPS在工程测量中进行点放样、曲线放样以及在地籍测量中进行界址点测量，对测量结果进行精度分析。

ABSTRACT: The present paper is mainly introduced GPS the basic principle, the system composition, the technical characteristic, the error source and the application method and the sequence of operation, and carry on a lofting, the curve lofting as well as using GPS in the project survey carry on the boundary point survey in the cadastration, carries on the precision analysis to the measurement result.

本论文主要介绍GPS的基本原理、系统组成、技术特点、误差来源和使用方法及操作步骤，并利用GPS在工程测量中进行点放样、曲线放样以及在地籍测量中进行界址点测量，对测量结果进行精度分析。

ZqD;Z.BUB0 abstract:the present paper is mainly introduced gps the basic principle, the system composition, the technical characteristic, the error source and the application method and the sequence of operation, and carry on a lofting, the curve lofting as well as using gps in the project survey carry on the boundary point survey in the cadastration, carries on the precision analysis to the measurement result.

论文摘要：本论文主要介绍gps的基本原理、系统组成、技术特点、误差来源和使用方法及操作步骤，并利用gps在工程测量中进行点放样、曲线放样以及在地籍测量中进行界址点测量，对测量结果进行精度分析。

A programm is designed to calculate nodes of quadric curve by straigh approaching with equalstep length and dimidiate method,thus N/C machining operation program can form automatically.

在一定误差范围内，采用等步长直线逼近法和二分法对二次曲线进行数学计算处理，利用 VisuaL Basic 6。

The virtual platform is tested by experiments of measuring artificial defects in the mild steel sheet workpiece. And the results show that its functions, including signal channel controlling, signal collection, magnetical flux density curves and butterfly curve, data accessing and signal quantifying and display, can be realized by using the virtual panels; the quantifying precision of this system is about 85 percent; and the shape inversely calculated is similar to the real shape of the defect.

通过实验测试得到如下结论：对该虚拟仪器面板的操作能够有效地实现通道控制和信号采集、磁通密度曲线及蝶形图的实时绘制、数据的存取以及信号的定量计算和显示等功能；具有较高的检测精度，缺陷智能量化相对误差不超过15%；检测反演所得缺陷形状能够与缺陷的真实外形相符，满足可视化检测要求。

The electricity price curve in electricity market possesses the features of multicycle and strong fluctuation, whereas there is evident error in the prediction by grey GM(1,1) model with exponential growth, for this reason the authors propose a period residual modification based grey price forecasting model, which not only inherits the advantages of grey model but also makes the forecasting curve fluctuated by means of smooth processing of original data, improvement of initial condition and period residual modification.

电力市场中的电价曲线具有多周期、跳跃等特性，而呈指数增长的灰色GM(1，1)模型预测误差较大，为此，文章提出了基于残差周期修正的灰色电价预测模型。

Basing on theory analysis and computer simulation,the method of a parabolical curve interpolation is applied to correct this error, and this metmhod is also realized with a microcomputer in a TV tracking measuring system.

本文在理论分析、计算机仿真基础上提出用抛物曲线插值方法对该项误差进行校正，并用微机在一电视跟踪测量系统中实观。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。