Presents the principle of statistics process control, the judgement of state in statistical control for a process by means of control chart, and the analyses and improves process capability.
阐述统计过程控制的原理、应用控制图对过程作出统计稳态的判断，分析并提高过程能力。
This paper introduced basic principle, characteristics and process control of foam technology.
阐述了泡沫技术的基本原理、特点及工艺控制问题；
Introduces the process and principle of 4m8nitrogenous press electric control and instrument system.
介绍4m 8氮压机电气控制过程和原理及仪表系统。
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