给规类为概念设计分类活动是系统分析与系统设计的常见活动。
The activities categorized as conceptual design are the usual activities of System Analysis and System design.
尺寸，螺纹规，最小壁厚和爆裂压力，材料分类，各种质量要求和所规定的标记和标识要求等。
Dimensions, thread gaging, minimum wall thickness and burst pressure, material classification, various quality aspects and requirements for marking identification are stipulated.
其次，在控规信息分析的基础上，根据其特点和信息分类的原则、标准和方法，对控规信息进行分类和编码研究。
Secondly it gives classification and code of the information of regulatory plan based on characters of it and relevant principle, standard and methods.
其次，在控规信息分析的基础上，根据其特点和信息分类的原则、标准和方法，对控规信息进行分类和编码研究。
Secondly it gives classification and code of the information of regulatory plan based on characters of it and relevant principle, standard and methods.
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