前景

In Chapter 1, the history, recent development and prospect on radical chemistry are summarized. And an overview of experimental and theoretical background of radical cyclization reactions is included.

论文第一章概述了自由基化学的历史背景、研究现状和发展前景，并对自由基环合反应的实验及理论背景进行了介绍。

In this thesis, we implement a computational procedure to categorize and classify 3-D objects from their contour under a simple environment. First, we use foreground detection, Canny edge detection and speedy GVF snake to obtain the object's contour. The contour is then used to establish the object's features. Two databases are built using methods which compute similarity by modified aspect-combination algorithm proposed by Cyr and Kimia and new proposed aspect-combination algorithm. By using these two databases, we recognize 3-D objects using four recognition methods and compare their performance. Finally, a conclusion is made that our newly proposed algorithm is better than the modified algorithm proposed by Cyr and Kimia.

在本论文中，对一个在单纯环境下的三维物体，由撷取到辨识出此物体做了一个完整的实现，首先，利用前景侦测结合肯尼边缘侦测法和加速的梯度向量流动态轮廓侦测法，来得到物体轮廓，接著利用此轮廓找寻出物体的特徵，然后配合计算相似度的方法，代入修改后的Cyr and Kimia的外观结合演算法（aspect-combination algorithm）和新提出的外观结合演算法去建资料库，然后，对於三维物体则依据两种不同方法所建出的资料库，利用四种辨识的方法来辨识并比较其结果，最后得出新提出的外观结合演算法是优於修改后的Cyr and Kimia的外观结合演算法的结论。

In the last ten years, Chinese scientists have found that angustmycin A had biological activities of cytokinin. It has a promising applications in the botanical research and the agricultural production.

近十年来，我国科学工作者发现它具有植物细胞分裂素的生物活性，在植物学研究及农业生产上也有良好的应用前景。

Therefore, domestic research and development of Cervical Cytology AssistScreening System has high practical value and extensive market potential.

因此，研发国产的宫颈涂片自动辅助判读系统具有很高的实用价值和广泛的市场前景。

The paper introduces the development of the dairy farming of milch buffalo in China, and the physical, chemical, processing prop- erties and the current processing status of buffalo milk .

介绍了我国奶水牛产业的发展状况，水牛乳的理化、加工特性，水牛乳的加工状况，干酪在我国的发展状况，分析了我国南方发展水牛乳干酪的条件、优势和前景，提出了南方发展水牛乳干酪的设想。

As the dairying industry is highly integrated, its development involves such links as the original milk production, the collection and transportation, the processing and packing, the circulation and marketing.

在这样的背景下，从产业链研究乳业的结构、行为和绩效，进而研究乳业发展规律、增长桎梏、未来前景以及政策投放就成为一个新的研究视角。

Of the four countries where the outlook has darkened, three are in Europe.

在四个就业前景黯淡的国家中，就有3个来自欧洲。

The main reason for the slump is the darkening outlook for the world economy.

油价下滑的主要原因是世界经济暗淡的前景。

And the outlook for foreign sales is darkening too.

出口销售的前景也黯淡了。

Unfortunately, the outlook for America's potential growth rate was darkening long before the financial crisis hit.

不幸的是在金融危机之前，美国的潜在增长率前景就长期暗淡。

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。