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The simulated results show that a stable acoustic standing wave is formed in bubble column under the geometric arrangements and the transducer boundary condition employed in this study. Due to the nonlinear behavior of the resonant wave and viscosity of water, there is a temporal shift at pressure nodes.

模拟结果表明，在本研究所用的几何布置和换能器与时间相关的速度入口边界条件下，反应器中形成了一个稳定的驻波声场；由于波的非线性以及水的粘性，压力波节点呈现出轻微的时间漂移性。

Compared the geometric figure simulated by computer with the log picture, it is showed that the design for the technical line is right and the mathematical methods is reasonable and the accuracy of log centering is accurate.

从计算机模拟的图形和原木实物图片的对照表明：该论文设计的技术路线是正确的，实现定心的数学方法是合理的，定心的精度可满足实际生产的要求。

Based on the sectional shield tunnels of metro in China, mechanical behavior of segment structure of shield tunnel under the different erection methods has been studied with geometric proportion of 1:12 through the simulated model tests of 3D 'ground-shield tunnel' in which joint effects of segments and mutual action effects between segments and ground are considered.

以我国城市地铁区间盾构隧道为对象，采用几何比 1/12、同时考虑盾构隧道管片接头效应和管片与土体相互作用效应，用三维土-盾构隧道相似模型试验对盾构隧道管片结构在不同拼装方式下的力学行为进行了研究，并将研究结果与梁-弹簧模型的理论分析结果进行了比较，得出的结论可为盾构隧道的设计提供参考。

The temporal and spatial distribution and evolution of the SCS warm pool is investigated using the water temperatures at a depth of 20 m in the sea. The formation of the warm pool is discussed by combining water temperatures with geostrophic currents and simulated oceanic circulation.

本文主要采用南海20 m层的水温分布资料，讨论了南海暖池的时空演变特征，并结合地转流和海洋环流数值模拟的结果探讨了暖池的形成机制。

In simulated attacks on enemy populations, entire cities in America are contaminated with bacteria, exposing millions of Americans to germ warfare.

在模拟的攻击敌国实验中，美国所有城市都感染了细菌，成千上万美国人陷入了病菌战争的汪洋大海中。

With the getatable materials, the sediment states of Yangshan Harbor area are simulated by using three-dimension visualization method, the main thoughts of this chapter is to simulate the undersea terrain andsediment movement of Yangshan Harbor visually, and conclude the rule of sediment movement of Yangshan Harbor on the basis of the result above.

本章的主要思路是利用海图对洋山港的水下地形以及泥沙运动进行了可视化模拟，并在此基础上总结出了洋山港地区泥沙运动的规律。

Glancing AT round hits were simulated by gouging the styrene in several locations on the glacis and turret with a blunt graphite pencil tip.

主要在前部和炮塔上，用一截烧热的石墨铅笔头在塑料上烧出，铅笔是绝佳的工具，因为它可以被削成合适的大小和形状，而且石墨不会被烧化。

At last, the magnetic properties of the amouphous glass-covered Fe-rich microwires were investigated using the micromagnetic method in this paper. The complex permeability with different magnetocrystalline anisotropy were simulated, the calculated spin distribution were given. The feasibility of magnetic properties simulation by micromagnetic method was discussed in theoretically.

采用了圆柱环型磁畴体系，计算不同各向异性常数的复磁导率，得到了不同电磁特性曲线，从理论上初步探讨了微磁学模拟计算玻璃包覆非晶态微丝电磁参数的可行性。

In this paper, various processes of potassium sulfate production by Glauber's salt method was simulated by software of PHEES Phase Equilibrium of Electrol.

本文利用PHEES软件，对各种芒硝法工艺路线进行了稳态模拟，给出了理论转化率和理论能耗之间的定量指标。

The production of globoid indexing cam and gas engine burningchamber are employed as refrences to analyze the method to mathematical modeling of complexed functional feature, furthermore, the research work of the character of surface feature production is deeply done .Advancing and optimizing the producting process, as well as the whole simulated machining by making UG NX2. 0 as the supporting system. Building the Fixture Library CAD/CAM Document system and producting template of DMU70V. Exploring the structure and flow chart of the Document System;Developing the MDF File by means of GPM module. All the above provide profound preparation to establish a further integrated manufacturing environment around 5-Axis NC production center.

在本文中，综合论述了特征建模的方法，以弧面分度凸轮和内燃机燃烧室作为实例，重点研究了复杂功能曲面的建模及曲面分析方法；并从五坐标加工角度出发，详细研究了曲面零件的加工特性，提出并优化了具体的工艺过程；利用UnigraohicsNX2.0作为开发工具，对建模和加工过程进行了全程仿真；围绕DMU70V建立了专属夹具库、文件体系及工艺模板；综合规划了五坐标数控加工的CAD/CAM文件体系的结构和运作流程；开发了GPM五坐标后处理DMF文件，为建立以五坐标数控加工中心为主的加工体系打下了良好的基础。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。