查询词典 precision

At first the principle of bifocal imaging and it's precision influenced by calibrating precision of principal point are analyzed,and two invariants of principal point are found in the two bifocal images.And then based on the two invariants a novel bifocus depth-estimating algorithm is proposed to steer clear of the principal point calibration and improve the depth estimating precision.

本文首先分析了图像主点坐标标定对双焦测距精度的影响，找到了双焦图像中两种相对于主点坐标的不变量，进而提出了基于此不变量的双焦测距算法，避免了繁琐的标定环节并提高了算法精度。

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.

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。

The main works in this paper are as follows:(1). In this thesis, a new method, continuous linearization model, is constructed for the non-linear dynamic systems. The precision Duhamel integration solution for the linearization equation is also given from the theory of linear differential equation. The calculating results show that the new method can improve the calculation precision greatly. In fact, the truncation error is not limited by this method, it can arrive the precision according to the requirement.

本文的主要工作有以下几个方面：(1)由于非线性项的存在，使得多数情况下难以得到非线性动力方程的解析解表达式，目前常使用数值积分方法来求解非线性动力学方程的解，但常规计算方法的计算精度不很理想，本文提出了含Taylor展开项中高阶余项的非线性动力方程的线性化数值计算方法，构造了瞬态线性化方程，给出了Duhamel积分的表达式。

The results indicate that the ANN structure and the training sample have some impact on the prediction precision. The real time measured power as input will improve the precision of 30 min ahead prediction, however will decrease the precision of 1h ahead prediction. The results which using the atmospheric data at all different heights as input have a higher accuracy when compared with the results using hub height data only. The designed ANN can forecast the error band.

研究结果表明，神经网络的结构和输入样本对预测结果有一定的影响；实测功率数据作为输入可以提高提前量为30 min的预测精度，而对提前量为1 h的预测精度会降低；把不同高度的数据都作为神经网络的输入比只采用轮毂高度数据的预测精度高；设计的神经网络能够对误差带进行预测。

To the new and old customers better service, I Wafangdian Bearing Group Company and / Luoyang Bearing Group and the Luoyang Bearing Institute, famous and all major manufacturers have established good cooperative relations between suppliers, our company can meet new and old customers High-precision bearings on the demand for imports bearing sales NACHI, SKF, NSK, NTN, IJK, IKO, Japan, spherical bearing FYH, Germany SWC high temperature bearings, the British tobacco RHP high-precision machinery bearings, Germany FAG28000 / hours of high-speed, High-precision bearings, chemical equipment for the U.S. Fafnir Bearing, Japan EZO corrosion-resistant stainless steel bearings; NORGREN, SIEMENS imports of machinery and other accessories, the United States JOHN CYANE mechanical seals, Germany KUKKO bearing working tools, triangular belt, Q, H series Shotblast cleaning machine , And other products.

为了对新老客户更完善的服务，我公司与瓦房店轴承集团／洛阳轴承集团和洛阳轴承研究所，及各大名优厂家建立了良好的供货合作关系，我公司还可满足新老客户对高精密轴承的需求，进口轴承销售NACHI、SKF、NSK、NTN、IJK、IKO、日本外球面FYH轴承、德国耐高温SWC轴承、英国RHP高精度烟草机械轴承、德国FAG28000/分的高转速、高精度的轴承、美国Fafnir化工设备专用轴承，日本EZO耐腐蚀不锈钢轴承；NORGREN、 SIEMENS等进口机械配件，美国JOHN CYANE机械密封、德国KUKKO轴承装卸工具、三角皮带、Q，H系列抛丸清理机等产品。

According to the horizontal precision of detail point, it analyzes the horizontal precision of the detail point when using flat, and the horizontal precision of the detail point when using the total station and computer.

从碎部点的平面精度出发，分析了平板测图时碎部点和数字测图时碎部点的平面精度，根据误差传播定律，结合测绘的实际情况，从而推导出两点法已知边推未知边的边长比精度。

Lost wax casting method now known as precision casting precision casting, a little cutting or cutting precision casting process, precision casting industry is a superior technology, its application is very extensive.

失蜡法精密铸造现称熔模精密精密铸造，是一种少切削或无切削的精密铸造工艺，是精密铸造行业中的一项优异的工艺技术，其应用非常广泛。

The company has more than 500 employees, of whom 48 were managers, developers and more than 20 technical personnel, quality control staff of 45, with eight production lines, molding machine 30, high-speed precision punch hardware 8 Units, mold processing equipment has : 9 Units precision grinder, EDM machine 7 Units, Units 6 Line cutting machine, milling machine 5 Units; quality control testing equipment have: salt spray test machine, constant temperature and humidity aging machine, plug testing machine, high precision tester, projector , 2.5 million tester, a variety of precision current-voltage impedance tester, etc., the monthly production capacity of 20,000,000 SET.

公司现有员工500余人，其中管理人员48人、开发技术人员20余人、品管人员45人、拥有生产线8条、成型机30台、高速精密五金冲床8台、模具加工设备有：精密磨床9台、EDM机7台、线割机6台、铣床5台；品管检测设备有：盐雾试验机、恒温恒湿老化机、插拔测试机、精密高度测试仪、投影仪、2.5次元测试仪、各种精密电流电压阻抗测试仪等，月生产能力2000万SET。

To the fastest efficiency and excellent quality of customer manufacturing precision plastic mold, connectors, connectors, precision die stamping die accessories and electronic semiconductor die finished with a special shoot, shoot precision yen inserts , Punch, guided-chu, I. Case, Secretary extinguishers, filling up, flat roof, import spring, the opening and closing, square Dingzhen, special machinery, spare parts production, molding inserts, bushings, dozens of special-top precision Mould parts, various brands and sales agency abrasive, knives, date of chapter.

以最快的效率和优良的品质为客户专业制造精密塑胶模具、连接器、接插件、冲压模具高精度模具配件及电子半导体类模具用之特殊成品梢、精密圆梢镶件、冲头、导柱、导套、司筒、灌嘴、扁顶、进口弹簧、开闭器、方型顶针、特殊机械、零件制作、成型镶件、衬套、特殊冲头等数十种精密模具配件、并代销各种品牌磨料、刀具、日期章。

The Company in the production process of gradually introducing a full set of first-class large-scale domestic and foreign advanced equipment, including high-speed precision flying straight up shear machine, High Speed Precision Sheet Slitter, sanding machines and a number of other essential equipment, is a cold-rolled stainless steel sheet supply, precision shear processing, precision surface processing (including oil matte board, drawing board mill oil, etc.), distribution, warehousing as one of the modern logistics enterprises.

本公司在生产的过程中逐步引进国内外先进全套一流大型的设备，包括高速精密飞追剪平直机、高速精密薄板分条机、磨砂机等一批主要设备，是集不锈钢冷轧薄板供应、精密剪切加工、精密表面状态加工（包括油磨砂板、油磨拉丝板等）、配送、仓储为一体的现代化物流企业。

Cynanchum Lingtai apricot production in the average weight 65 grams, the brightly-colored fruit, juicy rich, sweet-sour taste, sweet from the nucleolus, when the late Qing Dynasty famous Shaanxi, Gansu provinces, the Qing imperial court Tongzhi tribute for years.

灵台生产的牛心杏平均单果重65克，果实色泽鲜艳，汁多味浓，甜酸适口，离核仁甜，清末时就驰名陕、甘两省，清同治年间曾为朝廷贡品。

Chenopodium album,Solanum nigrum, and Amaranthus retroflexus were very susceptible to the herbicides. Polygonum persicaria and Abutilon theophrasti were relatively less susceptible to the herbicides, and Lycopersicon esculentum was not susceptible to it. The relationship between reduction rates of weed biomass and PPM values of weed leaves 2,4, and 6 days after treatment was established.

供试的6种杂草对该混剂的敏感性存在显著差异：红心藜Chenopodium album、龙葵Solanum nigrum和反枝苋Amaranthus retroflexus对该混剂最敏感，ED90值分别为47.65、71.67和29.17g/hm2；春蓼Polygonum persicaria和苘麻Abutilon theophrasti敏感，ED90值分别为96.91、114.20g/hm2；而番茄不敏感。