查询词典 nondestructive

Compared to cross-sectional CT, it has a lot of advantages, such as the rate of obtaining projections' X-ray utilization ratio and the isotropy of the spatial resolution and density resolution in 3D object. Voluming CT will became one of the more effective methods in medical imaging and industrial nondestructive test.

它具有获取投影数据的速度快、X射线利用率高、成象结果空间分辨率各向同性等优点，因而将成为用于医学影象诊断、工业无损检测等领域的更为有放的手段之一。

At present,the assessment and application of measurment uncertainty of noble metal content in nondestructive testing are not perfect in China.

目前，我国珠宝检测实验室对贵金属含量无损检测中的测量不确定度的评定及应用尚不成熟。

A nondairy coffee creamer.27744. A nondestructive system for monitoring broken wires in production line was designed, which based on the magnetic character of locked coil wire rope.

根据密封钢丝绳的结构特点，采用漏磁检测技术，研制了一套断丝在线无损检测系统，能对密封钢丝绳生产过程中出现的断丝现象进行有效监测。

For the sensor and hardware of wire rope tester has been mature, on the basis of the full-scale analysis of history and current situation of wire rope nondestructive testing in the domestic and overseas country, a research direction has been proposed that the feature extraction of the relevant characteristic with the broken wires quantitative inspection and research on effective recognition algorithm.

由于钢丝绳无损检测的传感器和硬件检测装置已基本趋于成熟，论文在全面分析了国内外钢丝绳无损检测技术历史及现状的基础上，针对钢丝信号的特点，确定了以&与钢丝绳断丝损伤定量相关的特征量提取和有效的识别算法&为基础的研究方向。

Besides,we are equipped with NC machining center,CAD valve design center,sophisticated NC equipments,Plasma arc powder built-up welding machines,efficient machining equipments etc.,and facilities for material tests,chemical element analysis,nondestructive tests,ultrasonic scald,mechanical property,and spectral analysis,as well as a team of professionals.

拥有CAD阀门设计中心、先进的数控设备、等离子弧粉末堆焊机，高效加工专用设备等，同时建有材料化验、化学成分分析，无损检测，超声波探伤，力学性能，光谱分析等检测设备和专业人员。

The present condition and development of training and qualifications for China petroleum tubular goods nondestructive testing personnel were introduced.

介绍了中国石油管材无损检测人员资格鉴定与认证工作的现状和发展。

It is the first time that ultrasonic nondestructive qualification on the quality of integration of suspension insulator pin with Zinc-sleeve is used. The detect equipment which had been developed have circulated for three years. The invented patent in allusion to this equipment has been authorized (ZL02133063.8).A multi-function analysis equipment, ZT-1 comprehensive analysis equipment has been developed with.

截至2005年底，材料无损检测研究所已在国内外重要期刊及国际会议上发表论文50余篇，多篇文章被SCI、EI等检索，多人次在国内及国际会仪上宣读论文，相关创新学术思想及学术成果得到了本领域国内外同行的认可。

Then the waveband was divided into two parts to develop calibration model using partial least square method for soluble solids content to remove the effect of the skin and the results indicated that the measurement results was not be enhanced. However, the difference of calibration results in the wavelength of 650-950nm with the r of 0.949, the RMSEC of 0.292 for intact watermelon and with the r of 0.973 and the RMSEC of 0.214 for skin-peeled watermelon indicated that the influence of skin is not very serious and the intact watermelon spectra also can get satisfied calibration result. 5. Vis/NIR spectroscopy nondestructive detection needs high-energy light source, so differences of diffuse transmittance spectra with different light intensity (600W, 1000W) were detected and effects of light intensity on spectra and calibration results were compared.

针对西瓜果皮较厚的特点，对去皮西瓜与带皮西瓜进行对比试验研究，发现果皮对光谱的影响主要集中在可见光部分(650-750nm)，对可溶性固形物含量采用偏最小二乘法进行分段建模并没有有效消除果皮的影响，对比研究去皮西瓜与完整西瓜光谱在650-950nm范围内的建模结果，完整西瓜二阶微分光谱校正模型相关系数r为0.949，RMSEC为0.292，去皮西瓜校正模型相关系数r为0.973，RMSEC为0.214，果皮对建模结果的影响并不严重，完整西瓜的建模结果可以满足检测要求； 5。

In the process of building and using the mass concrete structures, because of the effect of out-side condition and themselves, some faults will form in the structure, these faults will effect the bearing capability and endurance Using nondestructive testing method to test the concrete"s quality and diagnose its healthy, which has the significant sense in assessing the safety stability and research of the administering diseasesThis dissertation mostly researched the testing methods in the mass concrete structure, discussed the principles, methods, features, sphere of application of the ultrasonic testing in the mass concrete structure with faults, used dynamic FEM to simulate the testing process, discussed when the concrete structure with cracks is under the effect of the pulse, how the elastic waves propagate and what are their changing feature, Researched the principles of the first-arriving waves" phase when the cracks" depths are not same, obtained the relation between the inversion point and the cracks" depth, which has the direction sense in the application of projects,The second part of this dissertation is CT , which used the ultrasonic wave running through the tested-substance to get arriving-time of the ultrasonic wave, then inverse the image This dissertation drawed one CT program which can well present the different little cells ultrasonic wave velocity profiles of the substance, thereby to diagnose the quality of the part of the tested-substance, CT has the better using foreground..

在混凝土结构的施工及使用过程中，由于受其自身及外界各种因素的影响，常常会产生一些缺陷，对结构物的承载能力和耐久性造成严重影响，采用无损检测技术进行质量检测和健康诊断，这对混凝土结构开展安全、稳定性评估以及病害隐患治理研究具有重要意义。本论文主要针对大体积混凝土结构缺陷的检测方法展开研究工作，重点讨论了超声波法检测混凝土结构裂缝的基本原理和方法及其特点、适用范围，运用动力有限元数值模拟其检测过程，探讨了有裂缝缺陷的混凝土结构在脉冲荷载作用下弹性波的传播及其变化特征，研究了不同裂缝深度下首波相位变化规律，得出了反转临界点与裂缝深度之间的关系，这对实际工程应用具有指导意义。声波CT是一种新的无损检测技术，它是利用声波穿透被检测体获取声波接收时间，来进行计算机反演成像的技术。本文利用直射线法编制了层析成像程序，能较好地呈现被检测物体各微小单元的声波速度分布图像，从而对检测体的质量状况作出诊断评估，具有较好的应用发展前景。

Nondestructive evaluation techniques are concerned with detecting inhomogeneities in materials and characterizing their properties without causing any damage to the materials.

无损检测是在不损害或基本不损害材料或构件的情况下采用物理、化学等方法和手段，探测被检对象内部和表面的各种缺陷及某些物理性能。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。