燃烧不稳定性问题是发动机燃烧室研制过程中所遇到的难题之一，它具有极强的破坏作用。
Combustion instability, encountered in the development of researches of liquid propellant engines, is one of the significant challenges, which has tremendous destructivity.
本文介绍它的基本功能、开发过程、研制技术及应用情况。
This paper introduces the basic functions, developing procedure, research techniques and application status.
本装置是一套新型的电能质量监测仪，本文讲述了它的核心软件的研制开发过程。
This device is a set of new electric power quantity monitor, this paper discusses its core software development.
详细介绍了指纹采集仪用光栅在研制过程中，对原有光栅刻划机分度系统结构改造和重新设计，以及新的刻划工艺，它包括刻划方法、切削角度的调整、金刚石刀具刀尖夹角的确定和被刻划材料的选择。
The technologies include the ruling methods, the adjusting of the cutting angle, the selecting for the knife tip angle of the diamond cutter and the choosing of the materials being ruled.
详细介绍了指纹采集仪用光栅在研制过程中，对原有光栅刻划机分度系统结构改造和重新设计，以及新的刻划工艺，它包括刻划方法、切削角度的调整、金刚石刀具刀尖夹角的确定和被刻划材料的选择。
The technologies include the ruling methods, the adjusting of the cutting angle, the selecting for the knife tip angle of the diamond cutter and the choosing of the materials being ruled.
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