查询词典 precision

Factory design and production of various high-precision zoom lens, projector lens and as high as /20 flatness of the plane mirror is widely used in a variety of measuring instruments; factory production testing of optical imaging lens, the resolution of 2300000 pixels, relative distortion of 0.05%, which is high-precision imaging and quality measurement of choice for detection.

本厂设计生产的各种高精度变焦镜头、投影仪物镜及平面度高达λ/20的平面镜，广泛应用于各种测量仪器；本厂生产的光学影像检测镜头，其分辨率达到230万像素，相对畸变为0.05％，是高精度影像测量及品质检测的首选。

the digitized mapping technique is to combine the field data collection system with the computer assisted mapping system in surveys by computer technology.it aims to realize the information collected and processed digitally and automaticaity.the digitized mapping technique can cut short the working time,lighten the labor intensity and enhance the precision of the productions.the system consists of three parts,such as data input,data processing and data output.the survey-record digitized mapping technique is widely used in the digitized mapping working pattern.for its superiority over traditional plane-table mapping in accuracy and efficiency,the large scale digital mapping is becoming more and more popular.compared with traditional analogue mapping,digital mapping has more quality control pivotai points,and its contents and methods are more complex.with the appearance of new technology gps ,the coordinate of different levels controlling points may be surveyed in high precision and it has been applied widely in topographic survey.the operation process of gps electronic tachometer is introduced and its application in topographic survey is br

计算机应用论文，计算机论文， rtk ，全站仪，数字测图，地形测量， gps论文摘要：数字测图是在测量工作中利用电子计算机技术将野外数据采集系统与内业机助制图系统相结合，其目标是实现信息采集处理的数字化、自动化、信息化。数字测图可以缩短作业时间，减轻劳动强度，提高成果精度。数字测图系统主要由数据输入、数据处理和数据输出3部分组成，数字测图作业模式中测记式数字测图应用最为广泛。大比例尺数字测图正以其测图精度高，成图速度快等优势逐步的取代传统的，以平板仪为主的模拟测图。与传统的模拟测图相比，数字测图的质量控制关键点更多、内容与方法更为复杂。gps 新技术的出现，可以高精度并快速地测定各级控制点的坐标，在地形测量中已得到广泛地应用。本文介绍了gps 配合全站仪的作业流程，简要阐明了其在地形测量中的应用。在利用实测数据成图的过程中，解决一些常见的问题，并给出解决的办法及依据，同时给出一些有益的结论，以适应实际使用的需要。

The precision die-cutting equipment including die-cutting tool of precision and accuracy of the die cutting parts.

模切装置的精度包括模切刀的精度和模切部件的精度。

Precision machine tool equipment, and improve the quality assurance system and timely supply cycle, and thoughtful service, so that we become the majority of customers to buy high-precision products of the important objectives of choice!

精密的机床设备，完善的质量保证体系，及时的供货周期，周到的售后服务，使我们成为广大客户选购高精密产品的重要选择目标之一！

Precision machine tool equipment, and improve the quality assurance system and timely supply cycle, and thoughtful service, so that we become the majority of customers to buy high-precision molds mechanical one of the important choice!

精密的机床设备，完善的质量保证体系，及时的供货周期，周到的售后服务，使我们成为广大客户选购高精密模具机械的重要选择目标之一！

Precision machine tool equipment, and improve the quality assurance system and timely supply cycle, and thoughtful service, so that we become the majority of customers to buy high-precision machine tools one of the important choice!

精密的机床设备，完善的质量保证体系，及时的供货周期，周到的售后服务，使我们成为广大客户选购高精密机床的重要选择目标之一！

The precision of integration can be evidently improved by using smooth function transition, adaptive step size change method, implicit integration and predictor corrector method. Increasing the order of the LMM may not improve the precision in this case.

采用光滑函数过渡、自适应变步长技术及隐式和预测校正等方法，可以有效地提高数值计算精度，而提高方法的阶次不能有效提高精度。

Countering the serious wear on plain bearing bush of the primary lathe axis supporting,and the reducing of working precision,change to the ball bearing ,thus increase the working precision of the product.

针对原车床主轴支承滑动轴承轴瓦严重磨损，加工精度降低，改用滚动轴承支承法，从而提高了产品的加工精度。

The results indicated:（1）the combination of the Markov and spatial logistic models can improve the predictability of each model individually. In macroscopic scale, the total land use amount can be predicted via Markov chain; in microscopic scale, the multi-class multinomial logistic model can be used to implement the combined calculations of categorical variable and continuous variable, qualitative variable and quantitative variable to improve the precision of spatial regression. Meanwhile, the transition probability of each land use unit will be confirmed and the prediction of land use spatial distribution will also be completed.（2）the application system developed in accordance with the integrated model can effectively simulate and predict the land use evolution in Shenzhen City, and the prediction precision of verification system will suffice for recent land use monitoring and the making of annual land supply planning.

研究结果：（1）空间Logistic和Markov模型集成可提升单一模型的应用能力，宏观上利用Markov Chain进行土地利用规模总量预测，微观上利用多分类Multinomial Logistic模型解决分类变量与连续变量，定性变量和定量变量的联合解算提高空间回归精度，同时可以确定每一个土地利用单元转移概率，实现土地利用空间分布的预测；（2）基于集成模型开发出的应用系统能够有效仿真和预测深圳市土地利用演化，通过验证系统预测精度能够满足近期土地利用预警和年度土地供应计划编制。

These days with there being the gap in the precision and the capability of numerical control machine between our country with international advance level, this paper puts forward the projet of multiple axes rotary spindle head structure on the foundation of setting up direct drive technology, in order to satisfy needs of exceed high speed cutting and exceed precision machining.

目前国产数控机床精度、性能与国际先进水平还存在一定差距，文中在建立了直接驱动技术概念的基础上，介绍了万能自动镗铣头结构方案，以满足超高速切削、超精密加工等先进制造技术的需要。

Finally, according to market conditions and market products this article paper analyzes the trends in the development of camera technology, and designs a color night vision camera.

最后根据市场情况和市面上产品的情况分析了摄像机技术的发展趋势，并设计了一款彩色夜视摄像机。

Only person height weeds and the fierce looks stone idles were there.

只有半人深的荒草和龇牙咧嘴的神像。