查询词典 dimensional analysis

With the upgrade of the computer calculation and the development of finite element package, numerical simulation has become a very important method for in-depth study of the three-dimensional flow in screw extruders.

随着计算机计算能力的升级与有限元软件的发展，数值模拟方法已成为研究螺杆类挤出机流场的重要手段。

The designer only needs to enter several parameters according to customer's requirements, a three-dimensional solid model of face milling cutter can be worked out in 10-20 minutes. The design efficiency can be raised by 20 times.

设计时，设计者只需按客户要求输入几个参数，根据结构不同10—20分钟左右即可设计出一把面铣刀的三维实体模型，设计效率提高20倍以上。

Usage: According to his own face to face or at扫扫rouge cheek play on the shadow-bit position, to strengthen the three-dimensional sense.

根据自己的面形，以胭脂扫扫在面颊或腮位位置上打阴影，加强立体感。

Three-dimensional computer molecular dynamics simulation for high temperature static relaxation process in the epitaxial face-centered cubic crystal aluminum films has been carried out.

运用分子动力学方法对面心立方晶体铝外延膜的高温弛豫过程进行了二维计算机模拟。

We apply ourselves to provide holistic scheme of settlement for visual image from advertisements of films to factures of multimedia, and we have most advanced technology of making films and corporate technology of three-dimensional virtual reality.

致力于提供从影视广告到多媒体制作的视觉形象整体解决方案，拥有目前国内最先进的影视制作技术和三维虚拟现实核心技术，拥有完善的影视广告摄制系统，在辖区内已经成为最具竞争力的专业技术领先型企业。

In Chapter Two, we introduce the Dirac Fermion as the low energy excitations of the graphene, based on the field theory. We then discuss two-dimensional honeycomb lattice in the nearest-neighbor tight-binding model.

在第二章里，我们研究最近邻紧束缚模型下的二维蜂窝结构的电子态，然后讨论对应的场论模型，即一维Dirac Fermions 模型，最后引出有效质量方程。

Therefore, the study is significant both theoretically and practically. As a result, the studying aim of this paper is to establish a practical and complete system for the prediction of ship maneuvering motion, taking into account of the influence of the environmental factors, such as the wind, wave and current, establish a practical and complete system for the prediction of ship maneuvering motion. In this paper, the OpenGL virtual reality simulation technique is introduced into the field of ship maneuver and control, and using the MMG mathematical model, the three dimensional dynamic simulation system of the ship motion is established and good results are achieved. In the process of the system development, firstly, the maneuvering motion equations for ship in the still water are established, based on the MMG module mathematical model and serial experimental result. After compiling the program, the calculation results are compared with the experimental data, the coherence between them validate the mathematical model.

在系统开发过程中，首先采用MMG分离式数学模型及相关的系列化试验结果，建立单桨单舵海洋运输船舶在静水中的船舶操纵运动方程，并编制计算程序，经与试验结果比较，证实了计算结果的正确性；为了解MMG数学模型中模型参数变化对操纵性指数的影响程度，作者在上述已有程序基础上，对有关模型参数进行偏移修正，探讨了相应参数变化后的操纵性指数，对船舶操纵性指数对模型参数的灵敏度进行了详细的分析与探讨，所得结论与工程实际相吻合，具有实际应用价值，并为进一步提高船舶操纵性预报的精度打下了基础；然后，在已有的船舶静水操纵运动模型基础上，考虑双桨双舵的影响，建立了内河双桨双舵船舶的操纵运动模型；最后，综合考虑风浪流作用力的影响，进行了船舶的操纵运动仿真计算。

The purpose is to study the effect of three-dimensional asymmetric initial field caused by train's piston movement on smoke diffusion characteristics in subway tunnel.

研究目的是探索地铁列车活塞运动所造成的隧道内三维非均匀初场对列车火灾烟气扩散特性的影响。

The transient flow field induced by a high-speed train moving into a tunnel is a three-dimensional, compressible and turbulent field.

高速列车突入隧道时隧道洞口的流场是一个复杂的三维、可压缩、非定常的紊流流场。

In the media, girls are reduced to one-dimensional, wholly limited figurines.

在媒体上，女孩被缩略成一维的而且完全有限的雕像。

The question of time is important in Kant's philosophy.

时间问题是康德哲学的重要问题。

of the existence of children with ITP serum concentrations of BAFF increased the abnormal immune mechanism.

这影响了各种组织。与此相反， ITP的主要是导自B淋巴细胞反应。这一特征