论文摘要翻译求助

Some node to visit tree or or part in tree go on until calendar very much important in software design. In each field, have important function. In water conservancy, the optimization design of the rainwater pipe network of the city; In geography, adopt four forks to set up the structure to store the topographical data of many resolution ratios; Lie in computer oneself, utilize carrying on the copy of the file all over the calendar of the tree. Have a lot of method in tree of employing, and more respect need us go, explore. To tree of N fork, but there are not 2 forks of trees to employ then general, what the textbook is introduced above is fewer, and the algorithm is varied. The article has analyzed to calendar algorithm various times of the tree, have mainly carried on deep understanding and analysis to the dividing into layer of the tree all over the calendar. Carry on the joint of the tree all over one of the basic operation that the calendar is the tree type structure of data. T