面壳

The multistage construction analysis method has been successfully used to simulate the whole erection process of a 102m-span barrel vault grid structure and a 118m-span double-layer spherical reticulated shell.

并运用多阶段施工全过程跟踪数值理论进行了两算例分析：某102m跨度大型柱面网壳结构的累积滑移施工与支架滑移施工的理论模拟，某118m跨度双层球面网壳结构悬臂施工的全过程理论分析。

In this paper, the structural characteristics and the handedness of papovaviruses capsid with icosahedral lattice are introduced indetail, and capsomer contacts are comprehensively analyzed.

本文介绍了乳多空病毒二十面体的结构特征、点阵手性，分析了其衣壳结构和壳粒的相互作用。

Secondly the sedimentary characteristics of Caledonian strata in Hunan, Guangxi, Jiangxi suggested that there is not discontinuity of facies on both sides of Jiangshan-Shaoxing Fault Zone, which is considered to be Caledonian suture zone of Yangtze Block and Cathaysia Block, but the interdigitation, continuity of facies or assuming the united paleogeographic unit.

得出该结论的证据主要有两方面：①湘桂赣地区加里东期花岗岩体呈面状展布，且地球化学测试结果表明为壳源S型花岗岩，这些特征与洋壳消亡形成的花岗岩体无论在分布特征还是在地球化学特征上都有显著的差别；②湘桂赣地区加里东期地层的沉积古地理特征研究表明在目前多数人公认的扬子与华夏的缝合带，即江绍断裂带两侧的加里东期沉积物不存在两大古地理体系的截然跳相现象，而是表现为两侧沉积相带的指状交叉、过渡或呈现为完全相同、统一的岩相古地理单元。

Four-node degenerated shell element and rigid shell element are used in our FEM model.Updated Lagrange formulation and rate form constitutive equation are adopted to solve the problem of large strain and large rotation in sheet forming process.Sheet metal material property is described by plastic anisotropy yielding model and isotropic hardening model.Master surface-slave surface contact model is used to define the contact between tools and blank.Contact constraints are enforced with a kinematic algorithm and friction stress is computed by Coulomb friction law.Dynamic relaxation method is used to treat springback after forming stroke.

四结点蜕化壳单元和刚体壳单元分别用来建立板和模具的有限元模型；更新Lagrange法和速率型本构关系被用来处理板料变形中的大应变和大转动；材料模型采用塑性各向异性屈服与等向强化模型；通过主从面模型定义板料和模具的接触，接触算法采用运动约束法，摩擦力用库仓定律计算；并利用动力松弛法对回弹过程进行了计算。

At each penton, a hole (φ=20〓) can be seen connecting the inside and the outside of the capsid, and there is a hole (φ=12〓) at each hexton and the center of 2-fold axis, so there are 132 holes in total at the surface of CSBV.

应用冷冻电镜技术和计算机三维结构重构的方法，我们测定了CSBV核衣壳的三维结构，分辩率为25 〓，病毒的核衣壳是按T=1（P=3）的对称结构排列二十面体，病毒表面比较光滑，有12个五邻体、60个六邻体的结构，每个五邻体的中央有孔洞，六邻体的中央也有孔洞，另外在2次轴的位置上也有孔洞，这样病毒共有132个孔洞，五邻体的孔洞的直径为20 〓，而六邻体和二次轴的孔洞的直径月为12 〓。

In some slices of hyoliths the tubular pores that were filled with phosphate granules in the process of the early phosphatization can be recognized. These tubular pores are densely distributed. They are approximately perpendicular to shell surface and almost reach to surface and bottom of the conch.

在一些软舌螺纵向和横向的切片中，均发现早期磷酸岩化作用中已被磷质颗粒充填的孔沟形态，这些孔沟分布相当密集，基本垂直壳面，几乎通达壳壁的顶底。

The effects of the unconformity surface on karst mainly include two aspects: one is the configuration of unconformities which controls the development scale of regolith karst, another is the intensity of unconformities which controls the development depth of regolith karst.

不整合面对岩溶发育的控制主要体现在两个方面，一是不整合面形态对分化壳岩溶发育范围的控制，二是不整合面的强度级别对分化壳岩溶发育深度的控制。

scatheless measurement ; numerical simulation ; helium pressure

利用氦气在不同压力下具有不同的状态参数和热力参数，可以通过传热方法测量包壳内的氦气压力。1试验装置和研究方法如图1，把燃料棒浸入到一个高温的池子内，热量会在燃料棒内传递开来，通过测量管壁外面不同位置出的壁面温度，就可以推测到包壳内的氦气压力

This study shows that there are 4 kinds of volcanic facies in deep volcanics in north Songliao Basin: eruptive facies, overflow facies, volcanic vent facies and volcanic sedimentary facies. There are 4 volcanic eruption cycles: Huoshiling period, Shahezi period, Yingchengzi period and Quantou period. There are 4 structural evolution stages: north-south accumulation, west-east subduction, uplift mantle and thin crust, alternative open and close. There are 4 kinds of pool-forming patterns:(1) pattern with the migration along the unconformity and fault to the near crater;(2) pattern with the migration along unconformity and fault to the rift margin;(3) pattern with the migration along unconformity, fault and fracture to the source rock;(4) pattern with the migration of the deep gas along the deep and large fault to the volcanic trap.

研究认为，松辽盆地北部深层火山岩主要存在四种火山岩相：即爆发相、溢流相、火山通道相、火山沉积相，划分为四个火山喷发旋回：即火石岭期、沙河子期、营城子期、泉头期，经历了四个构造演化过程：即南北夹攻、东西俯冲、幔隆壳薄、开合交替，具有四种成藏模式：即沿不整合面和断层运移至近火山口处火山岩圈闭聚集成藏模式、沿不整合面和断层砂岩疏导层运移至断陷边部火山岩圈闭聚集成藏模式、沿不整合面及断层、裂缝运移至源岩区内凹中隆火山岩圈闭聚集成藏模式、深部无机成因天然气沿深大断裂运移至火山岩圈闭聚集成藏模式。

Bb my home favorite shrimp noodles, first cooked noodles, and a prawn cooked decorticating will be chopped shrimp, plus some chopped carrot, spinach or cabbage leaves, on the surface in re - cook a while, plus a little salt, little point enough. bb every time we usually eat a meal of半碗small bowl.

我家bb最爱吃虾肉面，先把面煮好，把一只大虾煮熟，剥壳，将虾肉剁碎，再加一些剁碎的胡萝卜，菠菜或白菜叶，放到面里再煮一会儿，加一点点盐，很少的一点就够了。bb每次能吃我们平时吃饭小碗的半碗。

Breath, muscle contraction of the buttocks; arch body, as far as possible to hold his head, right leg straight towards the ceiling (peg-leg knee in order to avoid muscle tension).

呼气，收缩臀部肌肉；拱起身体，尽量抬起头来，右腿伸直朝向天花板（膝微屈，以避免肌肉紧张）。

The cost of moving grain food products was unchanged from May, but year over year are up 8%.

粮食产品的运输费用与5月份相比没有变化，但却比去年同期高8％。