A concept Model is a computer-readable data structure containing the primary concepts that appear in the original text and some of their relationships.

概念模型是一个计算机可读的数据结构，其中包含原始文本中出现的主要概念以及它们之间的一些关系。

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Database structure change to remove search path from primary keys.

数据库结构更改，从主键删除了搜索路径。

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The structure is often devised by business analysts whose primary concern is satisfying their business clients.

这个结构通常由业务分析人员设计，分析人员主要考虑的是满足其业务客户的要求。

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One technology highlighted by NASA is solid freeform fabrication, a process that could be used to support fabrication and repair of large space structures, spacecraft primary structure and replacement components.

MSN: Future astronauts may rely on made-in-space parts

Also today, Trius Therapeutics (TSRX) said a phase 3 trial of its tedizolid phosphate treatment for bacterial skin and skin structure infections met its primary endpoint.

FORBES: Pharma News: PDL, Trius, Alexza

They have a primary and a secondary containment structure, both made from thick reinforced concrete, to protect against the release of radioactive materials.

FORBES: Explainer: What Caused The Incident At Fukushima-Daiichi