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The next heaviest element in the periodic table, the inert gas helium, is used for detecting cracks in pressure vessels and the like.

在元素周期表中，接下来的更重些的元素是惰性气体氦气，它常被用作检测压力容器和其他类似东西的裂缝。

Effects of the number of cells and relative density on the elastic properties of closed-cell foam model are investigated by the finite element method and periodic boundary conditions.

建立十四面体的单胞模型和多胞模型，采用有限元方法和周期性边界条件，研究胞体数目和相对密度对闭孔泡沫模型弹性性能的影响。

Locals claim that there are enough lakes and rivers in the region for each inhabitant to have one of each. They are fond of boasting that the region contains every element in the periodic table.

本地人说，这里的湖泊和河流多得可以让每个居民分得一份；他们也喜欢炫耀这个地方有元素周期表上的每一种元素。

Investing case amount to drop considerably basically is to suffer achieve cast an industry to invest periodic element to affect.

投资案例数量大幅下降主要是受创投行业投资周期因素影响。

Finite element method and periodic dynamic testing method are used to analyze the influencing factors for the damper, such as length, width, height of lead block and amplitude, frequency of load, etc.

采用有限元理论和周期性动力试验的方法，分析和研究了诸如铅块长宽高、荷载幅值、加载频率等对此阻尼器耗能性能的影响及其整体工作性能。

Periodic law also directs the element and its compounds on the nature of the system, the structure of the modern theory of the material basis for the development of several aspects of the work, to develop into the valence bond theory chemical bonding, molecular orbital theory and ligand field theory.

周期律还指导了对元素及其化合物性质的系统研究，成为现代物质结构理论发展的基础经过几方面的工作，发展成为化学键的价键理论、分子轨道理论和配位场理论。

As for updating the periodic table, element 118 would slot in just below radon in the column that contains inert gases.

至于元素周期表的升级，118号元素的位置就在氡列那些气体元素之后。

He says, new round of periodic change element is very much, shipping transport power is supplied, dock is managed, wave motion of boat price change, freight.

他说，新一轮周期的变化因素很多，船舶运力供给、码头经营、船价变化、运费波动等。

And combining finite element method and periodic boundary conditions,this article has provided the solution process for asymptotic homogenization equation and the predicting effective mechanics properties method in engineering.

本文利用渐进均匀化理论，详细叙述了求解具有周期性细观单元结构的复合材料有效力学性能的方法，并结合有限元理论和周期性边界条件，给出了求解渐进均匀化方程的过程，为实际工程问题提供了预测材料力学性能的方法。

A finite element model of 3-3 piezocomposites was established according to the homogenization method, which combined the techniques relying upon representative volume element and periodic boundary conditions.

压电复合材料是由至少一种压电材料与非压电材料按照一定的连通方式组合在一起而构成的一种具有压电效应的新材料[1]。3 3 型压电复合材料是指压电相和非压电相分别三维连通的压电复合材料。

This paper discusses design and realizable methods of remote test output interface from logical design angle.

本文从逻辑设计的角度讨论遥测输出接口的设计及实现方法。

This also 星体投射plies to buildings, structures and geological features.

这也适用于建筑物和地质特征。