设计规格 design specification ; Design Rules ; structure design specification

产品设计规格 product design specification ; product design spec

产品设计规格书 Product Design specification

设计规格阶段 Design Specification

设计规格说明 design sPecification

测试设计规格说明 Test Design Specification

系统设计规格说明 [计] system design specification

系统设计规格 system design specification

研究产品设计规格 study the product design specifications