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工程数据库管理系统——ＨｒＥＤＢＭＳ黄如福（中国建筑科学研究院电子计算中心）ＣＡＤ集成化系统中不仅存在着大量的原始设计、计算数据，而且还存在着大量的再生数据，另外还要保存同一工程不同版本的设计方案，其数据类型繁多、关系复杂。要做到有效的存储、灵活的管...
Engineering database management system - HREDBMS Huangru Fu (China Academy of Building Research Electronic Computing Center) CAD integrated system not only exists in a large number of original design, calculation data, but also there is a large amount of renewable data, in addition to save the same project is different Version of the design, the data types and complex relationship. To be effective storage, flexible tube ...