查询词典 precision accuracy

Shadi major equipment may be walking a wire Cutting Machine; Taiwan-Green high-precision surface grinder; significant number of high-precision milling, precision and outside circular grinding, NC Fast thread cutting machines, ultrasonic composite die polishing machine, and other precision integrity Mechanical processing equipment, and to introduce the most advanced domestic and foreign 5/10000 accuracy of the Japanese optical projector, and high-precision tool microscope and a high degree of precision measurement orbit testing equipment such as the high-precision product quality assurance.

主要设备有沙迪可慢走丝线切割机；台湾宇青高精密平面磨床；高精度数显铣，精密内外圆磨，数控快走丝线割机，超声波复合模具抛光机等各类完整精密的机械加工设备，并引进国内外最先进的精度达万分之五的日本光学投影仪，以及高精度工具显微镜，高度测量轨等精度检测设备保证产品的高精度品质。

Perceivers and targets' personality characteristics had moderate effect on both accuracy and meta-accuracy; Participants whose content of internet chatting was more true were judged more accuratly, and had more accurate metaperception; Unlike researches using face to face interaction, traits' observability had negative effect on accuacy and meta-accuracy;Traits' desirability tended to reduce the accuracy and had no significant effect on meta-accuracy; Though gender had no significant effect on accuracy and meta-accuracy, there were noteworthy sex differences in the content of interpersonal perception.

知觉者和知觉对象的人格特点对人际知觉的精确性和元精确性都有一定的影响；网上聊天内容的真实程度越高，判断的精确性和元精确性也越高；与面对面的交流不同的是，特质的可观察性越高，人际知觉的精确性和元精确性反而越低；特质的社会期望值对精确性有一定的影响，但对元精确性没有明显的影响；虽然精确性和元精确性并没有表现出明显的性别效应，但与性别相关的刻板印象在网上聊天的人际知觉中仍然存在。

The results showed that:(1) some governing points, which were measured by submeter precision GPS, were utilized to correct the 1 m precision remote sensing image and it could satisfy the desired precision of geometrical correction, therefore, this method could be used as geometrical correction in the region where was short of the big scale relief map;(2) the density of the original data was the main factor to affect precision of the volume, and the precision of the calculated volume of earthwork could be improved to more than 90% when using the test points and feature points; the sparser the data density were, more significant could be improved; On the base that elevation of test points were measured by the submeter precision GPS, the error of the volume, which was produced by vectoring relief map to obtain DEM, could be calculated, and the calculation precision of the earthwork could be improved markedly.

结果表明：利用平面精度达亚米级的GPS测量控制点坐标对1米分辨率的遥感卫星影像进行几何校正，能够满足其几何校正的精度要求，可以解决缺乏大比例尺地形图地区的高分辨率遥感卫星影像的几何校正问题；通过对模型数据的分析，数据密度是影响体积精度的主要因素，利用检测点高程和特征点可以提高土方量计算的精度，使土方量计算的精度达到90％以上，数据密度越稀疏，精度提高越显著；采用高程精度达厘米级的RTK(Real Time Kinematic实时动态差分)测量检测点的高程，对用地形图扫描矢量化形成的DEM模型进行检测求出误差体积，可以大大提高土方量的计算精度。

Accuracy between two groups was calculated byχ~2 test.Calculate the average effective radiation dose of the 30 patients.Results In group A,seventeen patients underwent both DSCT coronary angiography and SCAG,among 255 segments of 17 patients,105 lesion sites of 70 segments were diagnosed stenosis or obstruction,of them,95 lesion sites were confirmed by SCAG.The accuracy of DSCTCA was 90.48%.The agreement of two methods have a high agreement(Kappa =0.853).In group B,13 patients underwent both DSCT coronary angiography and SCAG,among 195 segments of 13 patients,73 lesion sites of 57 segments were diagnosed stenosis or obstruction, of them,65 lesion sites were confirmed by SCAG.The accuracy of DSCTCA was 89.04%.The agreement of two methods have a high agreement(Kappa =0.835). There was no significant difference(χ~2=0.098,p＞0.05) between the accuracy of two groups.The effective radiation dose of 30 patients was 3.67±0.43 mSv.Conclusion Compared with SCAG,prospectively ECG-gated transverse DSCT is a valuable examination to detect and diagnose coronary artery disease with a low dose coronary angiography.The accuracy of the DSCT is approximate to the SCAG.There was no significant difference between the accuracy of two groups.

结果200例患者均成功完成了适应性前瞻性心电门控双源CT冠状动脉血管成像；30例同期行SCAG检查的患者，A组17例：HR≤75 bpm，可评价冠状动脉节段255个，70个冠状动脉节段有105处不同程度的狭窄，95处狭窄程度与金标准SCAG相符，其阳性诊断准确率为90.48%；2种方法的诊断结果得到了较高的一致性(Kappa值=0.853)。B组13例；HR≥91 bpm，可评价冠状动脉节段195个，57个冠状动脉节段有73处不同程度的狭窄，65处狭窄程度与SCAG相符，其阳性诊断准确率为89.04%；2种方法的诊断结果得到了较高的一致性(Kappa值=0.835)。2个心率组间的诊断准确率无明显统计学差异(x~2=0.098，p＞0.05)。30例患者的平均有效辐射剂量为3.67±0.43 mSv结论适应性前瞻性心电门控双源CT冠状动脉成像是一种有效减低辐射剂量的扫描方式，其诊断准确率与金标准SCAG相比得到较高的一致性，且高、低2个心率组间诊断准确率无明显统计学差异。

The matching device automatic test-board is the checking tool checked the matching device capability, precision and reliability are the technique of the the matching device, the precision is the precondition of checking the matching device, the reliability is credibility degree of the decision checking consequent.the topic in view of the existing technique level, the main factors, which influence the measurement precision of the large scale test system, are analyzed in this paper, and the solutions improving the precision are put forward.1 using the multi-channel independent ac to transfer dc module, the power supply of the digit part and the simulation part is discerption, reducing the crosstalk between the digital signal and the simulated signal;2the feedback self-checking module is constructed by singlechip compositive 16 high accuracy a/d , established a closed-loop control system through this module and improved system's overall precision effectively.

匹配装置自动测试台是检测匹配装置性能的检测工具，其重要的技术指标是精度与可靠性，其高精度是作为检测匹配装置的前提，可靠性是决定了检测结果的可靠度。本课题针对现有的技术水平，分析了影响大型检测系统测量精度的主要因素，提出了提高精度的具体方案和办法：1采用了多路独立交流转直流模块，数字部分与模拟部分分开供电，减小了数字信号与模拟信号之间的串扰。2利用单片机集成的16位高精度a/d构建了反馈自检模块，通过该模块建立了一个闭环控制系统，有效地改善了系统的整体精度。

Precision Automatic lathe plants 5 sets, precision miller 1 set, precision grinder 1 set, precision lathe 3 sets, precision mini lathe 15 sets, screw machine 1 set, precision digital lathe 2 sets, milling machine 2 sets, screwer 2 sets, profile project 2 sets, microscope 1 set.

A： 台湾产精密自动车床5台，台湾产精密自动铣边加工机一台，精密磨刀机1台，精密车床3台，精密桌上车床15台，搓丝机1台，精密数控车床2台，铣床2台，攻丝机3台，投影仪2台，显微镜1台。

Improve the product development of the industry chain as a leading and uniting the rich practical experience in the design team, we milling machines equipped with a sophisticated, precision grinding machines, precision Cutting Machine, traditional machine tools, precision machine circular saw, precision automatic and semi-automatic post-groove machine, precision table Machine tools, precision punching a steel frame, steel frame Coaxial single punch, flat belt grinding machines, automatic sandblasting machine and an automated packaging line, using advanced computer-aided design simulation technology to shorten the product development of the entire cycle.

完善产品产业链作为开发之主导，凝聚富有实践经验的设计团队，我们配备了精密铣床、精密磨床、精密线切割机、传统车床、精密圆锯机、精密自动和半自动剖沟机、精密桌上车床、精密钢架冲床、单曲轴式钢架冲床、平面砂带研磨机、自动喷砂机和自动化包装流水线一条，采用先进的计算机辅助设计技术进行仿真分析，缩短了产品的整个开发循环周期。

Whether the inner cylinder is drilled or not do not affect obviously the measurement accuracy. The accuracy of the drilled outside cylinder is higher than the undrilled ones, and the drilled holes are better to be equally distributed, further more, the number is less than 36 with the diameter of 3mm. The sealed outside cylinder can lower the measurement accuracy. The thinner material of sealed inside cylinder is and the more ventilative function is, the higher accuracy will be achieved. Moreover, when the space between inside and outside cylinder is smaller, the measurement accuracy also becomes higher.

结果表明：各处理精度均较高，最高达97.40%；内筒打孔与否对测量精度无显著影响；套筒打孔的处理比不打孔的处理精度更高，且孔洞适宜均匀分布，但数目不可过多，直径为3mm时不宜超过36个；套筒封底会降低测量精度，内筒封底材料越薄、透气性能越好精度越高；内筒与套筒的间隔较小时精度更高。

Main job is to guarantee the scraping interaction and equipment on both sides of the friction surface or can obtain higher precision and accuracy, precision and shape accuracy, precision and contact transmission because of good lubrication, manual and repeatedly is worthy, large amounts of wind, time-consuming, scraping the time needed for different devices vary, such as boring slider and slide block wind profiling, between the match before measuring clearance between the original value, and then according to the technical requirement to measure the value of time and scraping scraping, then apply DanFen red on the slider, manual let slip on the slide seat back and forth, they do straight-line movement between full contact and friction, reoccupy scraper scraping friction creates the contact point, so repeatedly, until the technical requirements for the match, single within 2 days, must blow to the boring if all the time to work with wind, a half month is required.

刮削过程。刮削工作主要是为了保证设备相互接触并摩擦的两面间能获得较高的尺寸精度、形状精度、位置精度、接触精度、传动精度和良好的润滑，因是手工操作且需反复配刮，故工作量大，耗时较长，设备不同，刮削所需时间也各不相同，例如镗床上滑座与下滑座间的配刮，刮削前先测量出二者之间原有的间隙值，然后根据工艺要求测算出需刮削值及每次的刮削量，再将红丹粉涂于上滑座之上，手工让上滑座在下滑座上来回做直线运动，使它们之间充分接触和摩擦，再用刮刀刮削摩擦产生出的接触点，如此反复多次，直至技术要求范围之内，单此项配刮需2天左右，若对于整个镗床所有配刮工作的时间总和，则需半个月左右。

The research of both theories and practices of gridding in the dissertation shows that: Linear interpolation based on triangulation is simple computationally and fast, but its gridding results isn't smooth and its precision is low; Multiquardric method is also simple computationally with high precision and good effect, but its gridding is slow because it is based on global calculation; Minimum curvature method is fast with high precision and good effect, but its gridding quickly degrades over areas with sparse data control when grid spacing smaller than the actual grid spacing is used; Ordinary Kriging method is high-precision, but its gridding is slow because of large calculation; Inverse interpolation is a computationally fast, efficient and robust method with high accuracy and perfect effect, and its gridding results of different gridding orientations are basically identical. Inverse interpolation is suitable for thegridding of geophysical irregular data, especially for large-scale geophysical irregular data.

本文的方法研究和数据试验分析表明：基于三角网的线性插值法计算简单，速度快，但其网格化结果不光滑，精度不够；多元二次函数法计算简单，网格化精度高，效果良好，但它是基于全局计算的，计算速度较慢；最小曲率法计算速度快，网格化精度高，效果良好，但其在稀疏控制点的网格化容易出现振荡现象；普通克里格法网格化精度高，效果良好，但其计算量较大，一般计算速度慢；反插值法网格化计算稳定，速度快，精度高，效果好，而且在网格化方向不同的情况下其网格化精度效果都达到基本一致，适合于地球物理不规则分布数据的网格化，特别是大规模地球物理不规则分布数据的网格化。

"Second Life is remarkably easy to work with, and is very popular,"

"第二次生命是显着容易的工作，并且很受欢迎，"

For example, we usually assume that materials are homogeneous and isotropic and free of internal defects or flaws.

为了得到适合有限元分析的模型，我们必须经过如图2所示的简化步骤。