壳板

The calculation indicates that converter heat insulation layer thickness of asbestos board is about 30 mm.

对重钢50t转炉进行了炉壳温度场分析，计算表明：转炉隔热层石棉板的厚度为30mm时，炉壳温度就能控制在360℃以内，低于炉壳材质的蠕变温度。

Thereby the stable temperature field is analyzed by using the finite element method, and the mean temperature, temperature difference between the inwall and outer wall of the tube sheet and cylinder are worked out, which is taken as the heat load for an analysis of the stress field.

为此， 运用有限元法对稳态温度场作了计算，求得管板、筒体等部件的平均温度、内外壁温差，并将这些参数作为应力场分析的热载荷；将废热锅炉离散为由板壳元和杆单元组成的空间结构，对自重、压力、温度组合的4 种工况进行计算，得到管板、筒体等部件的应力场分布规律。

METHODS: 15 g/L silk fibroin solution was made by degumming, salvation and dialysis. Chitosan was dissolved in 2% acetic acid solution to prepare 25 g/L chitosan-acetic acid solution. Two solutions were mixed to prepare six silk fibroin/chitosan solutions, and mass ratio was 10: 0, 5: 5, 4: 6, 3: 7, 2: 8, 0: 10. These solutions were separately sucked in a 24-well plate. Following exhausting gas vacuole at 4 ℃, precooling was performed at -20 ℃ for 12 hours, followed by cryodesiccate for 30 hours.

通过脱胶、溶解、透析这3个主要步骤制成质量浓度为15 g/L的丝素溶液，将壳聚糖溶解在2%的醋酸溶液中制成25 g/L的壳聚糖-乙酸溶液，然后将两者混合，配制成丝素/壳聚糖质量比分别为10∶0，5∶5，4∶6，3∶7，2∶8，0∶10的6种溶液，分别吸入24孔板中，4 ℃排出气泡后，-20 ℃预冷冻12 h，再冷冻干燥30 h。

The main cause of deformation of a converter shell is temperature rising of the converter shell, a economical and effective method to reduce the temperature and creep deformation is adopting a heat insulation layer of asbestos board.

转炉炉壳温度升高是炉壳变形的主要原因，采用内衬石棉板隔热是降低中小型转炉炉壳温度、减轻炉壳蠕变变形的经济有效措施之一。

This article studied the heat transfer character and the pressure loss in the shell side of the elliptic tube heat exchanger and the helical baffle heat exchanger and the traditional bow-shaped baffle heat exchanger through the experiment.

通过试验方法对椭圆管换热器与螺旋折流板换热器和传统的弓形折流板换热器进行了壳程传热性能和压降的研究，同时进行了壳程传热性能和压降的对比。

For bulk carriers, the side shell is one of the weakest parts of the hull. Most of previous bulk carriers are single-hull bulk carriers, according to the casualty statistics of bulk carriers, the accident rate of the side shell of the single-hull bulk carriers is highest among hatch, pipe, deck, side shell and bottom etc.

散货船的舷侧结构是整个船体结构中最薄弱的环节之一，目前绝大多数散货船为单壳结构，根据多年的散货船事故统计显示，在舱口盖、管系、甲板、舷侧外板、船底结构等诸多损伤中，单壳散货船的舷侧外板事故率是最高的。

For bulk carriers, the side shell is one of the weakest parts of the hull. Most ofprevious bulk carriers are single-hull bulk carriers, according to the casualty statisticsof bulk carriers, the accident rate of the side shell of the single-hull bulk carriers ishighest among hatch, pipe, deck, side shell and bottom etc.

散货船的舷侧结构是整个船体结构中最薄弱的环节之一，目前绝大多数散货船为单壳结构，根据多年的散货船事故统计显示，在舱口盖、管系、甲板、舷侧外板、船底结构等诸多损伤中，单壳散货船的舷侧外板事故率是最高的。

On the basis of the results and methods of the researches done at home and abroad the analytical model of finite element has been built according to the formation and behavior of I-section plate girders with stiffeners.

实际工程中的板件由于存在初始几何缺陷或在荷载作用下发生屈曲变形后，便具有了壳体的特征，因此文中采用板壳的曲壳有限元分析方法。

Hy rib pyramid lattice shell is researched systematically in this thesis. It synthesizes the merits of folded plate and spatial grid structure and will be widely applied in practical projects.

本文研究了一种新型的空间网格结构——折板形锥面网壳，它综合了折板和网壳的优点，有广泛的工程应用前景。

For aiming at vibration-proof structural design,a bionic design technique of topology design optimization for vibration-proof plate and shell structures is suggested.

以抗振结构设计为目标，将仿生设计技术应用于板壳结构加强部件的分布设计中，提出了一种简单高效的结构拓扑优化设计方法，以处理具有复杂边界条件的抗振板壳结构的拓扑优化设计。

The basic concept of FOP can be summarized as to further optimize effective prescription according to the standard of curative effects and with the aid of modern science and technology and theories of traditional Chinese medicine.

其基本内涵可概括为：以确有疗效的中药复方为研究对象，以现代科学技术和传统中医药理论为技术支持，以该复方所治病证的药效响应为评价标准，以优化重组疗效更优的新复方为研究目的。

Ever since our world has been a world, native forests have been indiscriminately exploited by man.

自从我们的世界一直是世界原生森林被任意剥削人。