淬硬精密丝杠的牙形精度取决于精磨。
The accuracy of the tooth forms of the quenched precision lead-screws is decided by the precise grinding.
通过控制研磨参数，使得磨具磨损均匀，从而保证磨具面形精度。
This method is to control lapping parameters, make lapping tool wear well distributedly and thus assures lapping tool surface accuracy.
大口径望远镜主镜的面形精度是影响望远镜成像质量的关键因素之一。
The surface figure precision of the primary mirror in a large aperture telescope is a key factor influencing the imaging quality.
分析了加工残留误差，砂轮磨损以及砂轮倾角误差对面形精度的影响。
The influences to the surface shape accuracy caused by the mismachining tolerance, the wear and the fixed angle of the cup wheel are analyzed.
为了满足反射镜较高的面形精度要求，提出了一种基于有限元分析的柔性支撑结构。
According to the design requirements of the mirror, the flexible supporting structure was designed, then the finite element analysis software was used to mesh and submit the operator.
在此基础上，通过施加力或位移进行多点调节，找到合理的调节方法，使面形精度达到要求。
On this basis, force or displacement load is exerted to find a reasonable adjusting method, in the way the surface figure requirement can be met.
铸轧辊是铸轧机列生产铸轧板坯的重要工具，铸轧辊各项参数的控制对板形精度控制至关重要。
The casting roller in casting-rolling mill is the important tool to manufacture the cast plates and strips.
在影响超精密加工工件面形精度的诸多因素中，机床的空间几何误差与运动误差往往占主要作用。
Among the factors that affect the workpiece form accuracy, space geometry errors and kinematic errors usually play the main part.
研究表明，虽然材料性能和放电次数对校形精度有一定的影响，但放电电压是校形精度的决定因素。
The studies indicate that materials properties and discharging times have effects on sizing precision, but the discharging voltage is the primary factor for the sizing precision.
固着磨料平面研磨加工中磨具的均匀磨损对于保证磨具和工件的加工面形精度具有极为重要的意义。
In the process of plane lapping with solid abrasive, the uniform abrasion of lapping tool is very important to ensure a good form of the workpiece and the lap-ping tool.
并以误差公式计算出的误差值来调整机床的微调机构，可达到减少面形误差，进而保证面形精度的目的。
The error value by error formula calculated is used which adjusts adjustment framework of machine, that can get purpose of decreasing surface error and guaranteeing surface precision of pa...
为了保证用轨迹成型法加工光学零件的面形精度，对精密磨削机床影响工件面形误差的因素进行了理论分析。
In order to guarantee surface precision of using locus shaping method machining optical parts, the factors of fine grinding machine which affects surface error of part is theoretically analysed.
如何确定镜子的最佳支撑方式，来保证最优的镜面面形精度，这在天文望远镜的光学成像系统中具有重要的意义。
How to design the best support of the mirror to ensure the highest accuracy of the mirror surface, which is very significant for the optical and image system of the astronomical telescope.
经计算机处理后，将补偿信息反馈到数控系统，并将得到的工件面形精度测量结果以图形的方式显示在显示器上。
The compensation information is feedback to NC system and the measured surface accuracy is displayed by drawing on the screen panel.
在线路施工的补充测量控制中，对先期控制点老坐标的如何使用，关系到新坐标的网形精度和与老坐标的差异程度。
In additional control survey of route construction, how to use the coordinates of old control points affects both the precision of new coordinate and the difference between old coordinate and the new.
仿真与实验结果表明：该模型预测和控制板形精度的平均误差绝对值均在5％之内，具有较好的效果，可应用于板形在线预测与控制。
The experimental results show that the absolute value of mean error of such prediction and control precision is within 5% , which gets good effect on sheet shape control. The BP network m…
本文从方牙丝杠磨削的原理误差入手，分析了方牙丝杠加工的原理性误差及其对工件牙形精度的影响程度，提出了减小加工方牙丝杠原理误差的措施。
The paper analyzes machining error and its effect on the tooth profile accuracy according to the principal error, and gives the methods to diminish the error.
在空间相机中，对地面像元分辨力起基础决定性作用的光学元件是主镜。主镜作为空间相机中质量最大的光学元件，其面形精度、位置精度要求十分严格。
In the space camera, the most crucial optical component that affects the spatial resolution is the primary mirror, so the requirements of its surface figure and position precision are very strict.
因此，仿形靠模设计和制造的精度将直接影响油箱泄漏率的高低，进而影响油箱产品的质量。
In consequence, the designing and making accuracy will exert a direct influence on the leakage of tanks and the quality of the products.
提出的管坯壁厚精度概念极其控制方法具有普遍性，对于其它薄壁筒形件的制造工艺具有参考作用。
The introduction of the concept of bellows wall thickness accuracy has the universal significance and reference value for manufacturing technology of other thin wall tube like products.
CNC无靠模凸轮磨削具有效率高、柔性好、精度高、质量稳定等众多靠模仿形法无法比拟的优点。
The CNC method for camshaft grinding has the advantage of high efficiency, good flexibility, precision and steady quality by compared with copying method.
本文介绍一种复杂背景中目标图像的提取与高精度目标形心跟踪算法。
This paper presents an algorithm for target image extraction and high precious target centroid tracking in complex environment.
该文利用平面正四边形阵列对直升机目标进行定位，讨论了定位系统的原理及其算法，并对定位精度进行了分析。
This paper USES a square array to locate a target of helicopter and deals with location theory and its algorithm, as well as analyzing location accuracy.
影响零件质量的一个重要方面是几何精度，它包括尺寸精度、形位精度、表面粗糙度和波度等。
An important factors of parts quality is geometrical accuracy, includes size accuracy, form accuracy, surface rough degree, wave degree etc.
文章重点论证和提出了影响因素筛选、多边形网格单元划分的原则及预测精度评价的原理方法。
The paper was emphasized to demonstrate and present influencing factors sifting method, principles to divide polygon mesh units and to check predicted exactitude evaluation.
在较高精度面形测量的光学方法中，很多测量范围都受到光波波长的限制。
The ranges of most optical methods which are used in high precision surface profiling, are limited by the wavelength of light.
叙述了液柱式压力计的精度，对U形管压力计和双管差压计的正确使用方法及误差修正做了简要分析。
The precision of liquid column manometer was described. The correct use method and error correction of U tube manometer and double tube differential pressure gauge were analysed.
齿廓弹性变形是影响鼓形齿端齿盘精度和承载能力的重要因素。
Elastic deformation is an important influential factor of indexing accuracy and loading capacity of end-tooth indexing table with drum tooth.
齿廓弹性变形是影响鼓形齿端齿盘精度和承载能力的重要因素。
Elastic deformation is an important influential factor of indexing accuracy and loading capacity of end-tooth indexing table with drum tooth.
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