壳

Ltd and puts forward the method and suggestion to reduce the shell temperature by increasing the thickness of the insulation layer of the asbestos board s.

对重钢50t转炉进行了炉壳温度场及热应力分析，提出了通过加隔热层石棉板降低炉壳表面温度的方法，当石棉板的厚度为30mm左右时，就可以改善炉壳的温度场及应力分布状况，降低炉壳的蠕变变形。

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。

When the thickness of asbestos board is about 30 mm, the shell temperature can be controlled within 360℃, the thermal expansion stress of the shell is only 50 % of those without asbestos board, and this can help reduce the creep deformation rate of .

对中小型转炉提出了加隔热层石棉板降低炉壳表面温度的方法，并对重钢80t转炉炉身段进行了温度场及热应力分析，结果表明：当石棉板的厚度为30mm左右时，炉壳温度就能控制在360℃以内，炉壳所受到的热膨胀应力仅为没加石棉板时的50%，有利于降低炉壳的蠕变变形速率。

Morphologically and biologically, the triple-layered rotavirus particles are composed of three protein capsids, outer capsid includes VP4 and VP7, the middle is VP6, and the core is composed of VP2. VP1, VP3 and the 11 segments of double-stranded genomic RNA.

完整的轮状病毒颗粒直径约70nm，为正二十面体结构，由三层蛋白壳包绕，外壳为VP4及VP7蛋白，VP6蛋白构成病毒第二层蛋白壳，最内层为核壳，由结构蛋白VP1、VP2、VP3组成，核壳内包含有11个分节段的病毒双链RNA基因片段。

Production of bamboo shell tea,"three strong" brand bamboo shell has a long history of tea production to pure natural wild form of Chinese herbal medicine preparation, product use Shanlin collected more than 10 kinds of rare herbs, through special processing prepared by using bamboo shell into a gourd-shaped packaging.

广东省紫金县竹壳茶开发有限公司生产的竹壳茶，《三强》牌竹壳茶生产历史悠久，以纯天然野生中草药配制而成，产品用山林中采集的10多种珍稀草药，通过特殊加工配制而成，用竹壳包装成葫芦状。

Appearance, Founder R620 (VUR620-490) the default shell for the gray-black, but the other color version for you to choose, and this color version and the color is different from fixed-site market, the notebook, but can be as cell phones, for the superstructure onto the "red, yellow and black" colors, such as the "color coat", you can purchase this when coupled with the money, the color of all colors are income capsule daily notebooks and changed the color of heart, personalized fashion show!

外观上，方正 R620(VUR620-490)默认的外壳为灰黑色，但另有彩壳版本可供大家选择，而且这彩壳版并不同于市面上的彩色固定上盖笔记本，而是可以象手机一样，为上盖套上&红，黄，黑&等颜色的&彩壳外衣&，大家在购本时完全可以再加点钱，将所有颜色的彩壳都收入囊中，每天笔记本的颜色随心而变，尽显时尚个性！

There are products that car, light truck and its transmission box, back, shell clutch, clutch forklift shell, shell differential, engine support, excavators transmission box, box reducer, Shell, the oil pressure and a variety of chassis - Sprocket drive, pulley, with annual capacity of 5,000 tons of casting, production and processing all kinds of casting and parts of the opposite sex.

产品有轿车、轻卡变速箱及其箱体、后盖、离合器壳、叉车离合器壳、差速器壳、发动机支架、挖掘机变速器箱体、减速器箱体、壳、油压机箱体及各种传动链轮、皮带轮，拥有年5000吨的铸造能力，可生产并加工各种铸件及异形件。

The closed ring confining truss is set along the periphery of the reticulated shell, and the stiffening truss is set in the middle single-layer shell which can take advantage of the architectural shape. These measures resolve the contradiction between overall stability and temperature stress, and also avoid the shell thrust act on the lower concrete structure directly. Besides, these measures simplify the design of the shell bearing and the concrete structure, and the cost of the concrete structure can also be saved.

网壳通过可径向滑动球铰支座与下部混凝土结构连接，网壳周边设置封闭环形约束桁架，中间单层壳体部分利用建筑凸肋造型设置加劲桁架，解决了保证整体稳定和减小温度应力之间的矛盾，同时避免了网壳侧推力直接传递给下部混凝土结构，简化了网壳支座及下部混凝土结构的设计，节约了混凝土结构的造价。

Shell lubricants is revitalising its Corena range of high quality air compressor oils with the introduction of two new products A new generation of the successful Corena S and AS will be available alongside the existing Corena P and AP lubricants .

不同类型空气压缩机对润滑油的要求会存在很大差别。近日，壳牌润滑油公司推出新一代针对不同空气压缩机使用的壳牌Corena AP 、壳牌Corena AS 和壳牌Corena S压缩机油。

In chapter 2 and 3, experimentally, using the Angular-Resolved high-resolution fast Electron Energy Loss Spectrometer , at the condition of 2. 5 keV incident energy and 50-60 meV energy resolution, we measured the Optical Oscillator Strength Density Spectra for the excitations of 4p, 4s or 3d electron. The oscillator strengths for excitations of the valent shell 4p electron were obtained, and comparisons were done between presently experimental and previously experimental and theoretical results. The experimental results of different groups agree with each other approximately, but the semi-experientially theoretical results do not match with the experimental results. The delayed maximum in the photoabsorption spectra was discussed. It should arise from the transition of 4p→∈d. For the excitation of the inner-valent 4s electron, the discrepancies for the resonant structures in previous electron-impact results and photoionization results were clarified in present work, which confirms again that the fast electron impact method is suitable to measure the optical oscillator strengths. The autoionization Rydberg series 4s〓ns (n=5, 6, 7) and 4s〓nd (n=4, 5, 6, 7) were identified without ambiguity by the measurement at 0°, 2° and 4°scattering angles. The energy levels and natural widths of the excitations of Kr3d and Ar2p inner shell, including optically allowed and forbidden transitions, were determined. The widths of these inner shell excitations are nearly the same, which was interpreted by the Resonant Auger effect .

在第二章和第三章，实验上，使用角分辨的高能量分辨快电子能量损失谱仪，在2.5keV电子入射能量和50-60meV能量分辨下，测量了Kr原子由价壳层4p到内价壳层4s，再到内壳层3d电子激发的光学振子强度密度谱；得到了价壳层4p电子激发束缚态的光学振子强度，与前人实验和半经验理论结果作了细致的比较，说明几家实验是比较符合的，但半经验的理论计算存在问题；分析了光吸收谱中的延迟极大现象，说明在第一电离阈值以上几个eV范围内的极大值源于4p→εd跃迁产生的延迟极大；对于内价壳层4s激发的自电离区，澄清了前人实验中电子碰撞方法和光学方法在共振结构上存在差异的问题，再一次肯定了快电子碰撞方法是获得绝对光学振子强度的一种好方法；通过在非0°散射角的测量（如2°和4°），清楚地标识了4s电子激发的光学禁戒跃迁自电离里德堡系列4s〓ns（n=5，6，7）和4s〓nd（n=4，5，6，7）；通过在0°和4°散射角的测量，观测并标识了几个新的内壳层光学禁戒跃迁能级，得到了Kr原子3d和Ar原子2p内壳层激发态（包括光学允许和禁戒跃迁形成的）的能级位置和自然宽度，用共振俄歇效应解释了这些内壳层激发态（不管是光学允许还是禁戒跃迁产生的）的自然宽度彼此比较接近的原因。

Do not gum up the work by telling mother what we are going to do .

别告诉母亲我们要干的事，那会把事情搞糟的。

In recent years, application of the partial prestressed concrete beam s is developed.

近年来，随着部分预应力砼梁应用的推广，发现我国规范所采用的名义拉应力法的计算结果不稳定。