查询词典 thin wall

Based on the wave equation in the acoustic fluid space and the theory of thin-wall structure, the uncoupling error in low frequency range about the nonsymmetrical coupled structure-acoustic analysis equation is studied.

该对称模型特征值的非负性及特征问题的可降阶性也在本文中进行了深入研究，同时指出了在复模态分析中应当注意的问题；（2）由声空间波动方程和薄板理论出发，对非对称声振耦合方程的低频解耦误差问题进行了研究。

Cystic lymphangioma of mesentery is a rare cystic disorder of abdomen;most of them are multi-leaved and plurilocular thin wall cysts.

肠系膜囊性淋巴管瘤是腹部少见囊性病变，多呈分叶状多房性薄壁囊肿。

Cystic lymphangioma of intestine and mesentery is a rare cystic disorder of abdomen; most of them are multi-leaved and plurilocular thin wall cysts. CT scanning can precisely display the morphologic characteristic of the pathological changes, provide relevant diagnostic evidence and help to differentiate from other cystic diseases.

肠及肠系膜囊性淋巴管瘤是腹部少见囊性病变，多呈分叶状、多房性薄壁囊肿，CT能够准确地显示病变的形态学特徵，并能够提供相应的诊断依据，帮助与其他囊性疾病鉴别。

Finally, three new-style reticulately stiffening thin-wall cantilever models with different grid forms and grids arrangement were proposed, and their structural performances were studied by means of linear analysis, geometrically nonlinear analysis, dynamic analysis and buckling analysis, respectively.

最后，基于以上研究成果，提出了三个具有不同网格分布的新型仿生伸臂空间网格结构模型，并对它们进行了线性分析、几何非线性分析、动力分析和弹性屈曲分析。

Finally, simulation software was developed with Visual C++ and Delphi for 2D molding analysis of MIM, which affords facilities for the quality forecast of 2D thin wall parts and optimal design of mold and process parameters. In the research of molding performance of MIM feedstock, for the shortcoming of capillary rheometry, it was propounded that using spiral mold test molding performance of feedstock, and a set of spiral mold was creatively designed with quickly exchange gates and closed mold cavity. With the spiral mold, an orthogonal experiment was made on getting regress equation of flow length L〓 of the heavy alloy feedstock. Then the rule of L〓 varying with Q〓, P〓, and ΔT〓 was discovered. Q〓 ranks first in the influence on process parameters of molding performance, P〓 and Δ T〓 second. Therefore the injection rate Q〓 should be controlled primarily to improve the flow performance of feedstock.

在MIM喂料注射成形性能研究方面，针对毛细管流变仪测试法衡量流动性能的不足，提出使用螺旋线模具测试喂料熔体的注射成形性能，创造性地设计了一套可快换浇口，模腔封闭的螺旋测试模，并在螺旋测试模上采用正交实验设计，得出了高密度重合金喂料流动长度L〓的回归公式，揭示了L〓随Q〓、P〓、△T〓和S〓的变化规律，并得出工艺参数对成形性能影响的强度顺序为Q〓最大，P〓与△T〓其次，因而改善喂料流动性能应优先控制注射速率Q〓。

Semi－aromatic nylon has been widly used in thermoduric parts and thin-wall products due to its excellent rigidity, thermostability and dimensional stability.

摘要半芳香尼龙（Semi-aromatic Nylon）由于具备优异的刚性、耐热性、尺寸稳定性等优点，特别适合生产一些耐热部件、薄壁产品，所以在汽车发动机周边部件开发和电路板表面实装技术领域有大量研究。

The high-accuracy breezing rack for diamond saw with position fixer and the thin-wall engineering drill-breezing rack designed and produced by our company are meticulous, beautiful and accurate, thus enjoy a good reputation in the field and are very popular with consumers.

我们设计生产的高精度定位金刚石锯片焊架和工程薄壁钻焊架工艺精细、外型美观、定位精度高，在行业内有良好的口碑，深受广大用户的欢迎。

In order to acquire the heating-cooling process of laser molten pool and the mutual effect of sintering layers in multi-layer powder sintering, factors such as heat conduction, heat radiation, heat convecting and changeable thermophysical property parameters were taken into account comprehensively, the 3D transient state FEM of the temperature field of multi-layer thin-wall metal parts formed by DMLS was established based on ANSYS. The APDL (ANSYS Parametric Design Language) was used to carry out thermal resource moving and the technique of birth/death for element was used to simulate the process of material addition.

为掌握多层粉末烧结过程中激光熔池的加热冷却规律以及各烧结层之间的相互影响，综合考虑热传导、热辐射和热对流以及材料的高度非线性，基于ANSYS平台建立了多层金属薄壁件的三维温度场有限元模型，利用APDIJ语言编程实现模拟中激光热源的移动，采用&单元生死&技术描述粉末材料动态增长过程。

In recent years thin wall packaging has become an increasingly well delineated sub-segment of the rigid plastics market.

近年来，薄壁包装已成为一个日益明确的子市场的硬质塑料市场。

Compared with reinforced concrete floor, steel deck possess the advantage of thin wall, light in mass, but owing to smallness of damp, weakness of dissipation of energy, comfort possibly dissatisfies applicability required. Therefore, this paper first calculates and analyses dynamic property of new style steel deck; according to single footfall curve, ascertaining hominine walking excitation; utilizing time-history analytical method, calculating peak acceleration response of floor slab under excitation, and analyzing peak acceleration response proceeding from different board stride, different damping ratio as well as different profile.

相对于钢筋混凝土楼板而言，虽然钢承板具有壁薄、质轻的优势，但由于阻尼小、耗能差，其舒适度可能会不满足适用性的要求，为此本文首先计算和分析了新型钢承板的动力特性；根据单步落足曲线确定了人的行走激励；利用时程分析法，计算了楼板在行走激励下的最大加速度响应，并对不同板跨、不同阻尼比以及不同板型下的最大加速度响应进行了分析，结果表明这三种因素，尤其阻尼比和板型对于加速度响应的影响较大。

On the other hand, the more important thing is because the urban housing is a kind of heterogeneity products.

另一方面，更重要的是由于城市住房是一种异质性产品。

Climate histogram is the fall that collects place measure calm value, cent serves as cross axle for a few equal interval, the area that the frequency that the value appears according to place is accumulated and becomes will be determined inside each interval, discharge the graph that rise with post, also be called histogram.

气候直方图是将所收集的降水量测定值，分为几个相等的区间作为横轴，并将各区间内所测定值依所出现的次数累积而成的面积，用柱子排起来的图形，也叫做柱状图。