壳体

For a nonmetallic enclosure, all of these factors are considered with respect to thermal

对非金属材料壳体，所有这些因素要考虑热老化的影响。

The contents of this course include: the mathematical basis of FEM, the generic solution principles and expressions of elastic mechanics issue, the construction of element and its interpolation function, iso-parametric element and numerical integral, solution of linear equations, some practical issues of FEM modeling, brief introduction to typical commercial FEM packages, FEM for truss, plate blending and shell, and FEM for heat exchange and dynamics.

课程内容主要包括：有限单元法的数学基础、弹性力学问题有限单元法的一般原理和表达格式、单元和插值函数的构造、等参单元和数值积分、线性方程组解法、有限元建模的若干实际问题、典型商用有限元分析软件简介、杆件结构力学问题的有限单元法、平板弯曲问题的有限单元法、一般壳体问题的有限单元法、热传导问题的有限单元法、动力学问题的有限单元法等。

In essense, diwa-type orogeny is dependent upon the movement of crustobody.

地洼型造山运动的类型、发生和发展取决于所在壳体的运动。

By introducing reasonable fundamental assumptions and the Green strain in orthogonal curvilinear coordinates,geometric equations expressed by the Green strain tensor for solving thin shells with large deformation are derived in this paper.

将正交曲线坐标下的格林应变张量引入到薄壳大变形分析，通过建立恰当的基本假设，直接导出了用格林应变张量表示的壳体变形几何方程，将该方程代入到本构方程，由能量原理得到了小应变非线性变形平衡方程、内力方程和边界条件，在此基础上提出了大应变变形的简化分析方法。

The proper orthogonal decomposition method is introduced in this paper for this problem.

介绍了本征正交分解法在这一问题中的应用，并对基于球面及柱面壳体模型风洞试验得到的风压数据进行了比较验证。

To understand the evolution of the environment of the interior of the Tibetan Plateau during this period, the content Mg/Ca and Sr/Ca of ostracod shells from the Wudaoliang Group has been measured.

为研究高原腹地在此期间环境的演化，对五道梁组中介形虫壳体的Mg/Ca和Sr/Ca的值进行了测试。

The characteristic of Mg/Ca and Sr/Ca of ostracod shell geochemistry and sedimentology of the measured section located in the Tongtianhe basin reflects that during 23.8~21.8 Ma B.P., the evolution of the climate in the area experienced the course from wet and wet to dry, at last to warm and wet.

通天河盆地五道梁组地层中的介形虫壳体的Mg/Ca和Sr/Ca数值的特征，结合剖面岩性特征，反映了23.8~21.8Ma前该湖泊区域气候由湿润－干旱―暖湿的演化趋势。

According to the characteristics of thedouble channel sequential scan inductivelycoupled plasma atomic emission spectrome-try,this paper cbose the mostsensitive emission lines and optimum channelfor thedetermination of trace elements ingamma grade ostracod shell samples,and op-timized all conditions.

本文从顺序扫描式双通道电感耦合等离子体原子发射光谱仪的特点出发，对微克级介形虫壳体样品中的低含量元素选择最灵敏谱线和最佳通道，对各项条件进行最优化。

Ostracod shells ; Gammagrade sample ; ICP-AES ; Multielements de-termination

介形虫壳体；微克级样品； ICP－AES ；多元素测定

An outboard motor (1) has an engine (10) and a mounting case (50) disposed below and connected to the engine.

一舷外装马达(1)具有发动机(10)和布置在该发动机下面并与该发动机相连的支撑壳体(50)。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。