The ideas on system of"Materials Requirements Planing"and its application have deen proposed and discussed in this paper.

本文介绍了MRP 系统的概念，讨论了MRP 系统的应用问题，提出了建立MRP 系统的思想和方法。

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Articles and research materials from leading firms talk about how the lack of proper requirements is the primary cause of failure in IT projects.

来自领先公司的文章和研究材料讨论了缺乏正确的需求是如何导致IT项目失败的。

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He also said the city had failed to adequately address the requirements of relevance and significance of the materials it sought and had failed to demonstrate they are not available from another source.

WSJ: Judge blocks NYC from Ken Burns film footage

Congress' recent decision to raise fuel efficiency requirements has intensified the auto industry's interest in lightweight materials.

FORBES: Magazine Article

The credit is 10% of the cost of the building materials (labor excluded) for insulation, exterior windows and doors that meet Energy Star requirements, and roofs (metal roofs with pigmented coating, or asphalt roofs with cooling granules).

FORBES: Fiscal Cliff Deal Helps Homeowners Pay For Green Remodeling