查询词典 precision accuracy

In order to improve the accuracy of spectrochemical analysis of high speedsteels, a systematic study of the effect of different excitation conditions and di-fferent micro-structures of the samples on the accuracy of analysis has been made.

为了提高高速钢光谱分析的准确度，在本文中比较系统地研究了激发条件和样品的组织结构对于准确度的影响。

The computation of seismic traveltime is a core matter of ray-tracing method, and its accuracy affects the accuracy of the path and the accurate degree of the forward problem of seismic ray simulation.

地震波旅行时计算是射线追踪方法的核心问题，其精度直接影响着路径的精度和正演模拟的准确程度。

Abstract］ objective to evaluate the distinctive clinical value of magnetic resonance urographymru）in the diagnosis of primary ureteral carcinoma.methods to compare the accuracy of diagnosis of mru with ultrasonography,urography,retrograde ureteropyelography and ct,diagnostic imaging and progress of ureteral carcinoma were analyzed in twenty-four cases from 2000 to 2006,twenty cases had mru examinations.the original preoperative diagnostic reports of various imaging facilities were analyzed on account of the results of operation and pathology.results mru could clearly show the obstructive location of ureter.with regard to the ureteral carcinoma,accuracy of the location diagnosis was 100%.mru was superior to ulstrasonography,kub+ivp,ureteropyelography and ct we used to apply.conclusion comparing with other diagnostic imaging facilities,it has an important value in highly efficient,accurate location,safe,noninvasive and so on with mru,which can be used to show the features of primary ureteral carcinoma and has a wider scope of clinical application.

目的 探讨磁共振水成像技术在原发性输尿管肿瘤中的临床诊断价值。方法分析2000～2006年24例原发性输尿管肿瘤的影像学诊断结果，并基于术中所见和病理报告，将磁共振水成像技术20例）与超声24例）、泌尿系造影24例）、逆行造影15例）、ct(19例）的确诊率相比较。结果 mru能清晰显示输尿管的梗阻部位，定位诊断准确率为100%，梗阻病因确诊率高于b超、泌尿系造影、逆行造影和ct检查。结论与其他影像诊断方法相比较，磁共振水成像在显示原发性输尿管肿瘤特征方面具有效率高、定位准确和安全无创等重要价值，而且有更广泛的临床应用范围。

In addition, a quantitative analysis of factors influencing the cavern imaging accuracy in the traditional and new methods provides a theoretical guide to improve the exploration accuracy of vuggy carbonate reservoirs.

同时，对常规偏移成像方法和逆散射成像方法影响溶洞成像精度的主要因素进行了定量分析，为提高溶洞型碳酸盐岩油气藏勘探精度提供了理论指导。图11参23

By deducing and analysing the accuracy of the method, it proves that the new method can meet the accuracy demand.

通过对该方法精度的推导和分析，论证出该方法能满足桥梁检测的精度需要。

When the disturbing potential of 1m2/s2 accuracy, or the approximate velocity of accuracy less 2mm/s in the formula of the rotation of the gravity potential is required, the satellite orbit data not satisfied the potential rotation computing demand are rejected from the GFZs Rapid Science Orbit and TUMs ReducedDynamic Orbit. If the disturbing potential is desired 05m2/s2 at satellite track, the satellite velocity required in formula of the rotation of the gravity potential should be recomputed or the GFZs Postprocessed Science Orbit is adopted.

当要求在卫星轨迹处获得1m2/s2精度的扰动位时，也即要求位旋转效应公式中卫星速度的近似精度小于2mm/s时，GFZ的快速科学轨道、TUM的约化动力法轨道只需要剔除那些速度精度不满足要求的卫星轨迹点；当要求在卫星轨迹处获得05m2/s2精度的扰动位时，应当重新估算上述轨道的速度信息，或采用精度更高的GFZ事后科学轨道。

Then, position accuracy and resetting accuracy are measured in experiments.

并对PMLSM驱动装置的定位精度和重复定位精度进行了实验研究。

Finaly many experiments are completed in the lab in diffrient conditions , which contains illuminance of crack 、 contrast of image 、 distance of shotting and focal length, to review the accuracy of the new system and to analys the rule of th effection of the accuracy .

在论文的后阶段，设计了实验室中进行的两个层次的考核和标定试验，并对应用中必然遇到的物面光照度、图像对比度、测量距离和焦距的改变，对试验样本测量精度的规律作出了初步分析，为新方法的进一步完善提供了有价值的工作基础。

Aiming at these characters of original data, this paper upbuilds a kind of noise departure model via wavelet packet and soft threshold syncretizing, meanwhile, the relevant scaled functions are controlled by the required accuracy value so that we can obtain the needed accuracy and noise.

文中针对原始数据的特征，建立对其小波包分解后的各高频门限权值融合，并利用要求的数据精度值控制权函数的噪声分离模型，得到σ控制的数据和各种噪声的分离。

Analysis of detection ability and location accuracy of Tianjin Telemetered Seismic Network after its joining in NCUSN;2. Firstly, feed location accuracy of linear motor were analyzed and tested.

误差补偿是提高机械加工精度的有效途径，在分析测试数控直线电机进给定位精度的基础上，提出基于最小二乘支持向量机的直线电机进给定位精度误差回归建模和预测方法。

Panorama Many people are dancing in a large sitting room.

在一个大客厅里，许多人在跳舞。

We fully understand how a microwave oven cooks food, it is first necessary to talk ...

我们充分理解一个微波炉煮的食物，这是首先要谈。。。