data n. 1.资料,材料〔此词系 datum 的复数。但 datum 罕用,一般即以 data 作为集合词,在口语中往往用单数动词;如系指一件资料,则说作 this data〕。 2.〔美国〕(观察所得的)事实,知识。 a data book 参考资料书。 gather data on ...收集…的资料[数据]。 The data is not enough to be convincing. 资料不足,尚难令人信服。
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The paper discusses and researches the key technology of pdm's development, such as : object-oriented technology, dbms application, software develop technology, etc . then it gives the static objects architecture tree of pdm, and discusses the mechanism of electronic data vault in detail, the technology and methodology of software develop also was proposed 通过对典型pdm系统的考察,给出了详细的面向对象的pdm系统静态层次模型,阐明了pdm的核心??电子仓库的实现的重要机理,并对相关软件开发工具和标准的选择也进行了较详细的论述。