查询词典 dimensional analysis

L Based on the analysis on the current NC programming systems, an interactive NC programming system is studied: First, due to the over sophisticated calculation of cross and tangent points in NC programming, a knowledge based math processor is proposed, then, to provide more convenint graph entry method, a dynamic figure based graph entry system is devised, at last, based on the above mentioned studies, an integrated (including preprocessor, post processor and program testor), interactive, bi-dimensional NC programming system is developed.

围绕语音数控自动编程系统研究：(1)首先，在分析现有编程系统基础上，研究了交互式数控自动编程系统：针对自动编程系统交切计算复杂的特点，提出并实现了基于知识的数学处理子系统；为了方便图形输入，构造了动态表格图形输入子系统。

Three-dimensional stress analysis was carried out for screws with four different radii and cross-sections of the taper screw including rectangle sections without, with single and double round angle transition for strengthening, and trapeziform section.

在此基础上应用ANSYS软件对无圆角、单圆角、双圆角矩形和梯形四种截面的螺杆进行了三维应力分析。

PVA removing process is optimized by orthogonal test, and by use of analysis of variance method, factors which affect PVA removing result and the final quality of fabric are also studied. The PVA removing process is optimized. Comparing with twist woven plain fabric whose woven parameters are same to corresponding twistless fabric, properties of twistless woven fabric including breaking strength, tear strength, flex abrasion, air permeability, water vapour transmission, pilling resistance, drape, dimensional stability, wicking, and dyeing uptake are tested.

无捻纱机织物与有捻纱机织物(文中所提到的这两种织物的织物密度、纱线的号数等织造参数相同)的对比试验是本文的又一重点，本文通过对比试验，测试了织物的拉伸性能、撕破性能、顶破性能、耐磨性能、外观保持性、悬垂性、刚柔性、透气性、透水性、芯吸性能，绘出了上染速率曲线等，得到了大量的对比数据，并以数据为基础进行了分析，得出结论为：无捻纱织物具有良好的透湿、保暖、吸湿性能以及柔软的手感和较高的覆盖率，这些都证明了无捻纱机织物有良好的舒适性。

During the establishment of sediment yield dynamic model at the watershed outlet, it was difficult for us to carry out dynamic monitoring of each impact factors in the whole basin, because it was a long time research and was in very large-scale watershed. Taking into account the interannual variability of sediment yield mainly affected by hydrological conditions of rainfall - runoff and underlaying surface changes caused by soil conservation measures, a combined influence factor which is related to surface runoff modulus and the implementation time of the water and soil conservation project was proposed for the first time. Furthermore, its specific expression was determined through dimensional analysis and non-linear regression multianalysis.

在流域输沙量动态模型的建立中，由于研究时段长、研究流域尺度大，对输沙量各影响因子进行全流域逐年动态监测十分困难，考虑输沙量的年际变化主要受降雨-径流水文条件和水土保持措施等土地管理活动的影响，首次提出与地表径流模数和治理时间相关的综合影响因子，并通过因次分析法和二元非线型回归法确定了具体的表达式。

This paper has mainly analysedvertical oblique flow circulating pump operation properties. Through monistic flowdesign theory, carried out preliminarily design for impeller, and completedthree-dimensional model analysis through CAD software. With the aid of CFD-FLUENTsoftware platform, have carried out value for flowing imitation in pump, the SIMPLECmethod on unstructural grid has realized pressure the couple of speed, which verified theresult of preliminary design.

本文主要分析了立式斜流循环水泵运行特性，通过一元流设计理论，对叶轮进行初步设计，并通过 CAD 软件进行立体三维模型分析，借助 CFD-FLUENT 软件平台，对水泵内流场进行了数值模拟，利用非结构网格上的 SIMPLEC 方法实现压力-速度的耦合，对初步设计进行计算结果的验证。

Three dimensional analysis of solid motion containing the ununiform region became possible with using DEM.

三种固体含非均匀区域的议案三维分析成为可能与利用DEM的研究。

Taking the Liu'an Huoshan seismic risk area as an example, the authors have carried out a three dimensional analysis of the area, and predicted the potential location of future earthquake and its corresponding parameters including focal depth, magnitude, and the attenuation direction of the isoseism.

在执行中国地震局&九五&课题&江淮地区地震区划的研究&等项目的过程中，基于上述认识，笔者重点对具有中强震过渡区特色的鲁苏皖地区的地震构造环境开展了系统研究，具体采用宏观和微观相结合的综合研究方法，充分利用了现有的地表和深部研究成果。

The Heidelberg Retina Tomograph 3 (HRT 3) is a confocal scanning laser system for the acquisition and analysis of three-dimensional images of the posterior and anterior segment of the eye.

海德尔堡网膜断层X光摄影装置 3 （简称 HRT3）是一个共焦点的扫描激光系统，用于对眼睛前后部分的三维想象信息的获取和分析。

In this study, the objective is to develop a three dimensional two-phase fluid flow analysis system which can model the flow conditions and concentration variation of additives in steel ladle.

本研究主要是建立一个3-D双相流的流体流动数学解析系统，以解析在不同设计与操作条件下盛钢桶的流场型式及不同位置的添加剂浓度变化情形。

In order to solve the similitude problem of shaking table scale modle test of dynamic interaction of pile-soil-bridge structure in ground of soil liquefaction, based on the theorem of Bockingham π widely applied at present, the dimensional analysis method is used, and the constitutive strain-stress relationship of material between model and prototype and the dynamic response similarity of pile-soil interface are considered at the same time.

基于目前广泛应用的Bockingham π定理，主要采用量纲分析方法，并且结合考虑模型与原型之间的材料变形应力-应变本构关系及桩－土接触边界动力响应相似性，求解液化场地桩－土－桥梁结构动力相互作用振动台试验的模型设计相似关系，同时提出人工质量问题的解决办法。

My father is over 60 years old, and he lifts weights every day.

我爸爸六十多岁了，他每天都练习举重。

Then in a serious tone she declared:"It doesn't pay, dear boy, to look like a ninny with one's wife the first night."

两眼湿润了，她把身子蜷得很小，这样似乎可以更好地闻闻自己。