中文摘要：

结合重大技术装备功能门槛、性能提升、质量阶梯等技术特征，研究重大技术装备用户效用、用户支付意愿、用户质量偏好等用户特征，并与大规模制造产品进行对比分析．对决定用户效用水平的产品质量和用户质量偏好进行函数分析，形成了重大技术装备用户边际效用变动规律的基本认识，揭示了重大技术装备用户效用变动规律对重大技术装备技术创新的影响．本研究深化了重大技术装备创新理论认识，对装备制造企业技术创新实践有指导作用．

英文摘要：

Combined with the technical features of major technological equipments, such as its functional threshold, performance promotion and quality ladder, it researches the user＇s characteristics of such equipments, such as the user＇s utility, willingness to pay, quality preferences and so on, and compares with the large-scale manufacturing products. It makes a functional analysis on product quality and user＇s quality preference which determine the level of user＇s utility, understanding the fluctuation trends of user＇s marginal utility of such technological equipments, and discovering the impacts of the user＇s utility fluctuation on the technology innovation of such equipments. It deepens the understanding of innovation theory about major technical equipments, and guides technological innovation practice of manufacturing equipment enterprises.