查询词典 precision block

Department of Precision Instruments and Mechanology,State Key Laboratory of Precision Measurement Technology and Instrument, Tsinghua University

无线传感网络由大量传感节点组成，以自组织方式构成网络，通过协作测量获取监测对象的详细信息。

The main conclusions are the following:1 It is a effective means that making use of the high resolution remote sensing imagery has quickly and dynamically investigated and monitored the land use type ofRed Water River, and has carried through the four grades of classification, and its result has achieved the precision requirement of the minimum area of obvious land use type (cultivated land, field, economic forest) less than 9 pixel of imagery, area precision 9~27 pixel and 0.33 hectares.2 It is a high-efficient and feasible means that making use of the digital managing technology of wave band merging, precise geometry correction, imagery merging, imagery strengthening, imagery cut out and inlay, and making the orthograph, etc, and observing on the spot to data analysis, it has carried on people-computer interactive screen translating to the remote sensing imagery data of high resolution by using many kinds of geographical information systems soft ware.

主要结论如下： 1 利用高分辨率遥感影像进行快速、动态调查与监测红水河流域土地利用类型，并将土地利用类型进行到四级分类，达到重点地类图上最小面积9个像元，面积精度9～27个像元、1.5亩的精度要求，是一种行之有效的方法。

DK77 HE Series electric spark digital controlling machine tool High Efficiency and fine quality Multi-technical breaking-through, six paten honored Low price, high quality All-closed loop control, automatic multi-cutting, automatic machinery precision error compensating and highly intellectual Highest precision≤0.008mm Highest smooth finish rate, Ra≤0.58um and reedless Great benefits: at Ra≤1.2um, the process speed could obtain 75mm2/min Highly integrated: clear circuit, strong stability, reliable and easy to fix Unique wire winding system employed, smooth running, noiseless and long useful life Industry controlled computer system, PLC logical control and functional module design materialize the low error rate

DK77□□HE系列高性能电火花数控线切割机床惊人的效率、优良的品质多项技术性的突破、集六项专利于一身慢走丝的效果、快走丝的价格全闭环控制、自动多次切割、自动补偿机械精度误差、智能化程度高最高精度≤0.008mm 最高光洁度Ra≤0.58um，表面无条纹高效益：在Ra≤1.2um时，加工速度75mm2/min 高集成化：电路清晰、稳定性高、安全可靠、维修方便采用独特的运丝系统，运行平稳、无噪声、寿命长采用工业控制计算机系统、PLC逻辑控制、功能模块化设计，使产品故障率大大降低。

The super slippy surface can be got after colored metal and non-metal is cut by single crystal diamond cutter. Following, it can take the place of super precision grinding, the efficiency can be increased, and the precision can be guaranteed.

使用精密的单晶金刚石刀具加工有色金属和非金属，能够直接切出超光滑的加工表面，这样就可以取代超精密磨削等精加工工序，极大的提高加工效率，同时也可以保证加工精度和加工表面质量。

Infers theoretical precision of satellite stereophotogrammetry, then take SPOT5 HRS for example, calculates its theoretical precision and some analysis has been made.

推导了卫星立体摄影测量的理论精度估算公式，然后以SPOT5 HRS的参数为例计算了其立体摄影测量的理论精度，并进行了分析。

In addition, good drum should be tightly controlled and precision machining precision to prevent eccentric superstandard in order to avoid high speed business card printing and membership card when on scraping knife knock-on arising out of the knife.

另外，答澈底把持好滚筒增工精量与安设精量，制止公道超标，以免在低速制卡和会员卡制息时不差刮墨刀爆发攻击而爆发刀丝。

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。

If you were not , and OS X just booted normally, have no fear.

如果你没有，和OS X刚刚启动通常，没有恐惧。

I only want to preserve our all .

我只想保存好我们的一切