library n. 1.图书馆,图库;藏书楼;藏书。 2.丛书,文库。 a circulating library 流动图书馆。 a free library 免费图书馆。 reference library (书不外借的)参考图书馆。 have a library of 5000 volumes 藏书五千册。 Everyman's L- 〔英国〕人人文库[丛书]。 a walking library 活字典,博学家。
This system follows the principle of intelligent, open, hierarchical and specialized, utilizing knowledge furthest . here, knowledge contains parameters library, shapes library, rules library and human assistance . in this system, we define a pattern description language to describe shapes based on line we also define line's attributes and operations 系统中定义了一个模式语言描述,以线为基础来描述图形,并定义了图形的属性和运算,为该类图形提供了一个高效的描述工具。