model validation短语⁹⁶⁶⁷⁷⁺⁶ 基本例句 模型确认 New product design and development are normally divided into stages of design planning, design development, prototype trial making and design validation design model validation review. 新产品的设计与开发一般可分为设计策划阶段、设计开发阶段、样件试制阶段和设计确认定型鉴定阶段。 wiseivr