Based on the study of product design and product design process, the parameter surface model for supporting the product design process dynamic management is established.
在研究产品设计和产品设计过程的基础上，建立了支持产品设计过程动态管理的参数面模型。
Study a class of fourth-order nonlinear systems, decouple the whole system into two second-order systems, and design their separate sliding surface of each subsystems.
然后将一个子系统的控制目标嵌入到另一个子系统的控制目标中，用一个控制量使两个子系统同时向各自的滑模面趋近，使该四阶系统稳定。
In this paper, modularization is used to study the design and development of an inspection system for generalized defects on an optical surface.
论文采用模块化方法对光学元件表面广义疵病检测装置设计开发过程展开研究。
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