My advice is to think carefully at the design stage about whether a singular datum might have siblings later on.
我的建议是，在设计阶段，就单个数据是否在以后需要多个兄弟数据，要仔细考虑。
The final ERD (entity relationship model diagram) and system datum dictionary are given through data sheets normalization during logic design and physical design.
在逻辑设计与物理设计过程中通过数据规范化后得出最终的ER模型图并给出系统数据字典。
Design management is important to construction project management on the ground of life-cycle of project Theory and the datum of quality accidents of construction engineering.
根据项目全生命周期理论和对建筑工程质量事故的调查数据，设计管理对建设项目管理尤为重要。
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