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Starting form chitosan,amidogen protecting,cross linking,etheration,amination,amidogen release and addition reaction with CS_2,and chitosan derivative containing dithiocarbamate group was firstly prepared.

本文在课题组前期关于淀粉改性重金属捕集剂研究工作的基础上，参考国内外的相关文献，建立了以壳聚糖为主要原料制备二硫代氨基甲酸改性壳聚糖重金属捕集剂的合成工艺。

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。

The structure and organization of mitochondrial genomes of 14 marine bivalves and two freshwater bivalves were analyzed using comparative genomics and bioinformatics methods.

利用比较基因组学和生物信息学方法，比较分析了已登录到GenBank中的14种海产双壳贝类和2种淡水双壳贝类的线粒体基因组的结构特征。

Through single factor experiment, we educed that the best condition of dissolvable and bulgy capability of Polyvinyl alcohol-chitosan hydrogel is n: n 6:1, a volume concentration of crosslinker of 0.05%, and reaction time 9h.

通过单因素实验，得出了聚乙烯醇／壳聚糖凝胶具有最佳溶胀性能时的条件：聚乙烯醇与壳聚糖的摩尔比为6：1，交联剂戊二醛的体积分数为0.05%，反应时间9h。

The relations between the structure and property of cashew nut shell liquid were described.

阐述了腰果壳油结构与性能的关系，综述了近几年来国内外腰果壳油在高分子材料方面的应用，其中包括作为酚醛树脂改性剂、橡胶增塑剂以及在涂料和粘合剂方面的应用。

A small tropical cephalopod of the genus Spirula having prominent eyes and short arms and a many chambered shell in a .

旋壳乌贼属的热带小型头足类动物，眼睛突出，臂短，多个隔间的壳成扁平的状。

Living in cold regions will be hibernating snails, the type of life in the tropics will be dormant during the dry season, dormant when the mucus secreted in the formation of a layer of dry mouth closed shell, the body hidden in the shell, when temperature and humidity out of the activities when appropriate .

在寒冷地区生活的蜗牛会冬眠，在热带生活的种类旱季也会休眠，休眠时分泌出的黏液形成一层干膜封闭壳口，全身藏在壳中，当气温和湿度合适时就会出来活动。

Based on the shell element degraded from the continuous body, concrete and configured steels are modeled by the layered shell element, and the vertical steels burdened with added loads are completed by the combined shell element. Then, with the smeared crack model, associated flow rule and Madrid hardening model, the material nonlinearity of the concrete is depicted. The stiffness matrix of nonlinear thin-walled shell element is deduced. As for RC multi-T girders subjected to transverse loads, the properties, such as crack expanding and steel yielding, are studied.

基于实体退化壳单元理论，采用分层单元模拟了混凝土和构造钢筋，采用组合单元模拟了受力纵筋；并利用弥散裂缝模型、关联流动法则和Madrid强化准则等来描述了混凝土的材料非线性，推导了非线性薄壁壳单元的统一单元模式，研究了横向荷载作用下RC多T梁上部结构的裂缝发展和钢筋屈服等性能。

Based on the analysis of traditional convex hull algorithm, a new convex hull algorithm is presented, i.e. pyramid algorithm.

在分析传统的凸壳算法的基础上，提出新的凸壳算法，即金字塔算法。

Being a basic structure of computational geometry, convex hull is important to data analysis of GIS.

摘 要：(浅谈平面海量散乱点集凸壳算法)凸壳作为计算几何的一种基本的结构，对GIS的数据分析有着重要作用。

This one mode pays close attention to network credence foundation of the businessman very much.

这一模式非常关注商人的网络信用基础。

Cell morphology of bacterial ghost of Pasteurella multocida was observed by scanning electron microscopy and inactivation ratio was estimated by CFU analysi.

扫描电镜观察多杀性巴氏杆菌细菌幽灵和菌落形成单位评价遗传灭活率。