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。
There are many solutions for webgis , but the already existing " dark model " solutions do not meet the needs of new development more and more with the growth of demands in webgis , mainly because of the existing webgis have difficulties in geospatial data sharing and interoperability as well as can not adapt to the internet environment 虽然webgis有多种实现方式,但是随着webgis应用的不断加深,原有的基于“黑箱模型”的解决方案已经越来越不适应新的发展要求。主要表现在空间数据的共享与互操作困难, wkbgis的分布式特性与系统结构存在矛盾等,这就制约了gis “社会化”的进程,也阻碍了“数字地球”的发展。