“product life cycle theory”的概念、定义、翻译、参考文献-科学参考

单词	product life cycle theory
释义	product life cycle theory Encyclopedia 经济学产品生命周期理论释 product life cycle theory产品生命周期理论认为新产品从开始进入市场到被市场淘汰的整个过程中，存在引入、成长、成熟、衰退阶段的理论。
随便看	placelessness place making placemat placement placement, layout placement problem place name database place name index of archive place name query Place Navona，Rome placeness placenta placenta accrete placenta increta placental barrier placental endocrine placental function insufficiency placentalia placental membrane placental nutrient transfer placental retention placenta of domestic animal placentation placentitis place of a field

科学参考收录了854744条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。