下壳

The main contents are as follows: Creating finite element model of cradle carriage, top carriage and trail of the howitzer. The structural static stress analysis of are dealt with finite element program system I-DEAS. For accuracy and computation cost, the nonlinear finite element structural dynamics model of the howitzer is created with different elements such as solid elements, shell elements and beam elements.

主要包括以下几个方面工作：建立了该炮摇架、上架和下架的三维有限元静力学模型，并应用I－DEAS有限元软件进行了强度分析；顾及计算准确性和计算成本，应用实体单元、壳单元和梁单元相结合的方法建立了该炮的非线性有限元结构动力学模型。

Facing flywheel rear end, and insert the assembly pin when the timing arrowhead on flywheel rear end is aligned to speed sensor assembly hole on flywheel case; fasten the flywheel bolt and take off the assembly pin finally.

面对飞轮后端，当飞轮后端面上的正时箭头对准飞轮壳上的转速传感器安装孔时，然后插上装配销，上紧飞轮螺栓，最后拔下装配销。

The elastic contact between steel liner and surrounding concrete as well as the softening of concrete and damage under tension were considered. The analysis results of concrete damage in different parts surrounding the spiral case and vertical displacement of turbine and generator foundations were obtained. In addition, based on the damage analysis of concrete the flexibility check for stay ring was also carried out.

数值计算模型考虑了钢衬和外围混凝土之间的摩擦接触、混凝土材料的拉伸软化和损伤特性，对外围混凝土的损伤指标及分布、各钢部件应力、结构位移等进行了分析研究，并在蜗壳外围混凝土发生损伤的情况下对座环柔度进行了复核。

On the crucible salt bath's furnace shell is loaded with the circular upper hood, the crown has the air vent to put

坩锅盐浴炉的炉壳上部装有圆形上罩，顶部有排气口可接通风系统，以排除有害气体，上罩下

On the crucible salt bath's furnace shell is loaded with the circular

坩锅盐浴炉的炉壳上部装有圆形上罩，顶部有排气口可接通风系统，以排除有害气体，上罩下

The peanuts and broken shows drop though the bottom and are separated by hand.

花生和破的壳从底部落下，然后通过手工分离。

To understand the desulphurization performance of the biomass chars made by pyrolysis in different conditions using four biomasses, corn stalk, leaf, cotton stem and rice shell, a series of experiment was carried out.

对玉米秆、树叶、棉花秆和稻壳等四种生物质在不同条件下热解制备的焦进行了脱硫性能实验。

Methods BHK cells were seeded into 96 plates to be cocultured with these solutions.

方法将BHK-21细胞分别种植于类人胶原蛋白、壳聚糖、透明质酸以及共混溶液中，在倒置显微镜下观察细胞的黏附和生长情况，并利用MTT方法检测种植后1～5 d细胞的增殖情况。

Based on the software of ANSYS with powerful function of nonlinear analysis and shell analysis, nonlinear numerical analysis is applied to "F" copper seal. The straight model, deflexed model and in flexed model were applied during calculation, and the responds were reflected during the joint deformation. Meanwhile, the rules of stress change and corresponding conclusion come out by comparing results between models.

2利用ANSYS强大的非线性和板壳分析功能，建立三维有限元模型，对&F&型止水铜片进行数值分析，分别给出直线模型、外拐模型以及内拐模型在接缝位移作用下的响应，通过模型间计算结果的对比，得出应力变化规律及相应的结论。

In this dissertation, the author introduces some key concepts such as VP-shells, features of Core Functional Categories and particularly those of the light verb v into the study, and makes a detailed study of causative uses of both English ergative verbs and Chinese adjectival verbs. It is proved there exists the light verb v in Chinese causative uses.

本文引入了最简理论方案中的几个关键概念，如VP 壳、核心功能语类，尤其是轻动词v 及其句法特征，并运用这些概念对英语作格动词的致使性用法和汉语使动用法进行了详细的分析，确定了汉语使动用法中轻动词的存在及其句法结构，并合理地解释了在轻动词的影响下语序的改变以及致使意义的产生过程。

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。