查询词典 precision

Its traffic is very convenient.The enterprise, founded in 1993, specializes in precision hardware machine part, precision plastic gear, micro gear-box, weaving fittings and engineering plastic towline etc.

企业创建于一九九三年，专业制造精密五金机械零件，精密塑料齿轮及微型变速箱，纺织配件和工程塑料拖链等。

At last, the paper discusses distortion detection methods of Magnetically Suspension Train project. With VisualBasic6.0, we opens out naturalization layout and precision assessing software which can compute layout data and assess precision well and truly to guide construction layout conveniently. Thus, the efficiency of work can be heightened. Opening out distortion inspect and analyze software, can ascertain base's settlement, peg tip' distortion and the movement of tramroad girder's plane position in course of construction and using. This can provide bases to later alike projects.

本文在VisualBasic6.0环境中开发的磁悬浮工程归化法放样与精度评定系统软件，在施工放样阶段能比较方便、直观、准确地计算出放样数据并进行精度评定，以指导现场施工放样工作，可以大大地提高工作效率；开发的变形监测与分析系统软件，可以在施工过程中以及工程运营期间对整个工程进行变形监测处理，用以确定基础沉降和桩顶变形以及轨道梁平面位置的变化，从而可以为以后的同类工程建设提供依据。

Reference frame's uniformation methods, adjustment methods and the implication of corresponding datum for various adjustment methods are systematically discussed about high precision GPS network. The systematical investigates on the choice of reference station in the high precision GPS data processing and the effect to adjustment results are made. Some general principles on the choice of reference station are presented.

系统地讨论了高精度GPS网数据处理中参考框架的统一方法、平差方法及各种平差方法所对应基准的意义，针对高精度GPS数据处理中基准站选取对平差结果的影响进行了系统地分析，提出了基准站选取的一般原则。

In this paper, through the design of the optical system for an infrared automatic dimension sorting machine with high precision, the characteristic, design thought and evaluation method of the optical system, which is a kind of unimaged precision optical equipment applied under workshop conditions, are discussed in detail.

本文通过红外尺寸自动分选仪光学系统的设计，详细地讨论了在车间条件下使用的非成象精密光学装置中光学系统的特点。设计思想及评价方法。

The precision of the traditional ultrasonic localization method is limited due to unsufficiently precise estimation of the sound velocity and the time of flight, therefore, a new method, the special fusion method for redundancy ultrasonic information was proposed to solve the precision problem.

针对常规的超声波定位方法存在对决定定位精度的声速与渡越时间估算不准，导致定位精度有限的问题，提出了一种新的超声波绝对定位方法，即冗余超声波信息特殊融合法。

The precision of choosing vailable field of visual of measurement system have a directeffect on definition of image coming from CCD camera, and on precision of measurement data finally.

测量系统有效视区选取的准确与否直接影响到CCD摄像机拍摄图像的清晰度，最终影响测量结果的精度。

For contrast experiments, k-means and DBSCAN algorithms are also implemented using Visual C++ 6. 0. We conducted a series of experiments, including the experiment of the correctness of clustering and outlier detection, the experiment of the precision of clustering and outlier detection. The experiment of the runtime, the experiment of the effect of clustering and outlier detection on parameters, the experiment of the impact of clustering and outlier detection precision by the order of data input, and the experiment of the effect of the algorithm validness by the density character of dataset.

本文使用Visual C++ 6.0实现了基于距离的聚类和孤立点检测算法、k-means算法和DBSCAN算法，做了大量的对比实验，包括聚类算法和孤立点检测正确性实验；聚类算法和孤立点检测精度实验；算法执行时间实验；参数对聚类和孤立点检测结果的影响实验；数据输入顺序对算法聚类和孤立点精度的影响实验；数据集密度对算法有效性的影响等。

In order to locate mined-out areas in gold mines and place a curb on its hidden hazard, through laying out two high precision gravity survey sections of the 1∶100 scale in the research area, with Canadian Scintrex Corporation′s CG-5AutoGrav gravimeter, the gravity anomaly data are measured by the high precision gravity survey method for the first time, and the inversion is made by the Euler deconvolution method to determine the collapse of the mined-out region and the stable sector.

为了确定金矿采空区的位置，对其隐患进行治理，首次应用高精度重力方法。在研究区布设了两条比例尺为1∶100的高精度重力测量剖面，使用加拿大Scintrex公司的CG-5AutoGrav型重力仪，测取重力异常数据，并采用欧拉反褶积方法实施反演解释，确定了采空塌陷区域及稳定地段。

In order to resist the noise data, Variable Precision Rough Set Theory was proposed. In this paper, the Variable Precision Rough Set Theory is applied to judge the development degree of a region. It can resist the interference of the noise and get simple rules, but does not change the ability of assorting.

为了提高在实际应用中对噪音数据的适应能力，Ziarkio提出了可变精度粗集理论，本文把可变精度粗集理论应用在一个判断地区综合发展程度的系统，实现了抗噪音的干扰，同时也大大简化了原始数据集。

started with the analysis of characteristic parameter of the successive detection logarithmic amplifier,mainly discusses the main factor affecting its transfer characteristic by mathematics reasoning to its transfer function,studies the correlative relations of the single stair′s plus,the series with the dynamic range and the logarithmic precision by matlab and matrixx simulation.so two pieces of conclusion have been reached:one is on condition that the dynamic range is limited,the more the series that is used and the single stair′s plus is less,the higher the logarithmic precision is.the other is that using the double amplifier chain can enhance the logarithm starting point,so its stability is improved.and the conclusion has been applied to the practical circuit′s analysis of the tacan beaconing receiver.

摘 要：从分析连续检波式对数放大器的特性参数入手，对其传输函数进行了数学推导，重点讨论了影响其传输特性的主要因素，通过matlab和matrixx仿真，研究了输入动态范围与级联级数、单级增益和对数精度的相互关系，得出了两点结论：一是在限定动态范围的前提下采用的级数越多其单级增益越小而精度就会越高，二是采用双放大链结构可以提高对数起点，从而提高其稳定性。最后将结论应用于塔康信标接收机实际电路的分析中。关键词：对数放大器；连续检波；塔康信标；对数精度

In the chapter 2, the theoretic knowledge about the photosensitive resin and the grinding tools was firstly introduced.

第二章阐述了光固化树脂结合剂磨具的相关理论研究。

Do not use the program's indenting or margin-setting features; these will be added during typesetting.

不要使用缩排，页面边缘设置之类的选项，偶看不大懂。