精度

Combined GIS with MATLAB, the automatic extraction of RS and geography information of sample plots was realized.5. Introduced the resist-PCA estimation method to build the estimation formula on crown density, stock volume and diameter breast height, good forecast accuracy was achieved and the deficiency of traditional LMS parameter estimation was made up.6. The estimation process software of the model was developed, including data pretreatment, weight function selection, LMS estimation, PCS estimation, resist-PCA estimation, accuracy assessment and other function models, in order to c

摘要4、结合Gls和MATLAB技术实现对样地遥感信息和地理环境信息的自动提取。5、引入抗差主成分估计方法建立郁闭度、蓄积量、胸径的估测方程，取得了良好的估测精度，弥补了传统最小二乘参数估计的不足。6、开发了模型估测处理软件，包括数据预处理、权函数选择，LS估计，主成分估计、抗差主成分估计、精度评价等模块，实现数据处理、模型研建与精度评价的自动化、一体化。

Die-cutting precision not only includes the shape of the die cutting precision printing; and indentation of precision.

模切精度不仅包括了模切印品形状的精度，还包括了压痕的精度。

Experimental results indicate that the drift adjusting mechanism can implement the accurate image motion compensation, and the accuracy of the drift angle can reach 2', which can meet the accuracy requirement less than 3' for control system .

实验结果表明：偏流角控制系统精度可达到2'，满足系统对控制系统精度＜3'的要求，可以实现高精度的像移补偿。

Existing industry-leading companies at the "long tyrants,""" and other output devices, Dainippon Screen SCREEN 8060 High-precision drum scanners, Dainippon Screen,"Sally Cai," High-precision scanner platform, high-precision digital proofing systems, Apple G5/G4 computer equipment.

公司现有在业内领先的&龙霸&、&剑神&等输出设备，日本网屏SCREEN 8060高精度滚筒扫描机、日本网屏&彩仙&高精度平台扫描机，高精度数码打样系统，G5/G4苹果电脑设备。

As the six-dimensional high precision motion platforms as well as the compact and reasonable structural layout thereof are arranged, the invention can be effectively applied to the alignment and the encapsulation of various planar waveguides requiring high precision alignment, and can conveniently expand external equipment such as an IR-CCD, machine vision, a point gum machine, an UV curring unit and the like.

本发明设有六维高精度的运动平台和其紧凑、合理的结构布局，可有效应用于要求高精度对准的各种平面波导的对准和封装，并且可方便扩展IR-CCD、机器视觉、点胶装置、UV固化装置等外设设备，且操作简单，运动范围大，精度高。

The Additional Guide Star (with star flag 5) is come into use for improving the accuracy and speed of star identification. After the cases analysis of unsuccessful star identification, giving the guide star which always cause false star identification a given star flag(such as 6), which denote that the star is a Redundant Guide Star and can't take part in the star identification processing. Through the introduction of Redundant Guide Star, the accuracy of star identification is improving. The distribution of Additional Guide Stars spread all over the whole sky, even the star sparse area.

在选取导航星的过程中，位置精度阈值的引入，使得高精度的恒星作为导航星，为高精度的卫星姿态反演奠定了基础；辅助导航星的引入，与单一使用Tycho-2星表相比引入了大量的亮星(189颗辅助导航星遍及全天球，其中亮于3等星的恒星占34.4%)，且弥补了部分天区恒星稀疏无法满足星图识别条件的不足，这将十分有利于提高星图识别速度和识别率；冗余导航星的剔除，为进一步提高星图识别率提供了可能。

Laser-based metrology and grating-based metrology are two main ultra-precision tools of dimension measurement. However, very few research work has been done on grating-based nanometrology compared with laser-based nanometrology till now because many people, including some grating researchers and specialists, hold the idea that the accuracy of grating-based measurement is lower than the laser's and can only reach micrometre or sub-micrometre level. They consider that it is unfeasible to get nanometer-scale accuracy using grating-based sensors.

激光技术和光栅技术是毫米级以上量程的精密几何量测量的两种最主要手段，目前，用激光进行纳米测量的研究已经很多，但光栅纳米测量技术的研究却很少；很多人，包括很多光栅研究者和测量专家，都认为，光栅测量的精度不如激光，其精度还只是停留在微米量级上，用光栅来进行更高精度的测量以至纳米测量是难以实现的。

Finally the totalizers contact with the PC by RS-485 bus to form a distributed measuring network. The spindle flowmeter and the especially designed totalizer highly improve the precision of measurement, and the measuring system made up of them is very easy to use.

采用纺锤体流量计作为测量前端，成功的解决了传统节流装置测量精度低、压力损失大等缺陷，配以专用的积算仪系统，不仅避免了通用变送器与通用积算仪之间多次A/D、D/A转换所造成的精度损失，提高了测量精度，还简化了系统结构，使仪表的安装更加方便，具有很高的实用价值。

According to the engage relation of cycloidal gear with the pin wheel in type 2K V transmission,the formulas of relationship between transmission precision and mesh error of the actual profile of gears are established; then a synthesis mesh error is proposed as a quantified concourse of error to judge the transmission error,therefor the machining tolerances relative to transmission precision have quantificational relation,which is the basis for machining high precision 2K V drives with cycloidal gears.

根据 2K—V型传动中摆线轮与针轮的啮合关系，建立了实际齿廓的啮合误差与传动精度关系的计算式，并提出了综合啮合误差这一量化误差集合来评判传动误差，使得加工公差与传动精度有一个定量的关系，从而为研制开发高精度摆线齿 2K V型传动的加工制造提供了依据。

The accuracy of Rayleigh scattering calculation affects the quality of atmospheric correction of the ocean color remote sensing significantly, and it is essential to solve the vector radiative transfer equation in plane-parallel atmosphere to improve the accuracy of Rayleigh scattering calculation.

瑞利散射计算精度对海洋水色遥感大气校正的精度起着关键作用，为了提高瑞利散射的计算精度，需要求解平行分层大气矢量辐射传输方程。

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。