拓扑地

Finally, the integration of RP technology and RE is deep investigated. Some problems related with surface model and RP technology is pointed out. The method and data structure of reconsfructing the topology information of STL file are proposed. Also addressed in the paper are issues of the mistake check methods and repairing techniques of STL file. Then an experimental procedure of creating interface file and making the seat prototype of a bike is summarized in detail. The result testifies the feasibility and practicability of the technical line presented in this paper. All of the above-mentioned measures, impact the development for realizing the integration of RE/RPM.

最后，对反求技术和快速原型技术的集成问题进行了深入研究；指出了表面模型用于RP＆M中存在的问题；给出了STL文件拓扑重建的方法和数据结构；讨论了STL文件的错误校验和修复技术；在此基础上，进行了快速成型机的接口文件生成和实体成型加工实验，验证了本文所提技术路线的正确性和科学性，为实现RE/RPM的一体化起到了积极地推动作用。

The important topics, which include the digitization of network, identification of topological order and selection of roulette wheel, for realization of platform are discussed.

网络的拓扑结构采用数字形式来描述；节点间的关系则用关系矩阵简洁地予以表达；利用赌轮的选择功能，实现了网络节点状态的实例化。

Having MREE enrichment and evident minus-abnormity of cerium, the total REE in south coral reefs sediments is largely lower than that in other ocean zones, which indicate the dominately biologic sources of the sediment.

3铅同位素组成及三维拓扑投影矢量V_1、V_2值示踪结果显示：东北部海域沉积物铅同位素组成与珠江、华南地体的铅同位素组成及V_1、V_2值范围一致，反映其物源主要是珠江以及经台湾海峡输入的华南陆源物质。

Controlling polymer topology presents challenging synthetic obstacles as well as exciting opportunities for tuning macromolecular properties.1 In particular, nanoscale molecular architectures with welldefined shapes and dimensions may provide significant advancements in areas such as drug delivery and nanotechnology.

聚合物拓扑结构的控制为大分子性质的调控既提供了具有挑战性的合成障碍，又提供了一个令人激动的发展机遇。1 另外，具有精确可调控外形和结构的纳米分子结构可能极大地促进药物缓释和纳米技术领域的发展。

However, as the name（read－only memory）implies, CD disks cannot be written onorchanged in any way.

然而，正如其名字所指出的那样，CD盘不能写，也不能用任何方式改变其内容。

Galvanizes steel pallet is mainly export which suits standard packing of European Union, the North America. galvanizes steel pallet is suitable to heavy rack. Pallet surface can design plate type, corrugated and the gap form, satisfies the different requirements.

镀锌钢托盘多用于出口，替代木托盘，免薰蒸，符合欧盟、北美各国对出口货物包装材料的法令要求；喷涂钢托盘适用于重载上货架之用，托盘表面根据需要制作成平板状、波纹状及间隔形式，满足不同的使用要求。