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从工程实际的角度，介绍了单燃速单室双推力三维药柱的设计方法和药型参数优化方法，并通过设计实例纠正了长期以来对以单一推进剂实现两级推力的几个认识误区，为这一新技术成果的应用奠定了基础。
From the practical point of view, the design method of single-chamber single-chamber double-thrust three-dimensional drug column and the optimization method of drug type parameters are introduced. And some misunderstandings of long-term single stage propellant thrust , Laid the foundation for the application of this new technological achievement.