...Simplified representation of pipelines 管道的简化表示法 Simplified and Conventional Representation 简化画法与规定画法 Simplified representation of centre holes 中心孔的简化画法 ..
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简化画法与规定画法
Simplified drawing methods and prescribed drawing methods
以上为机器翻译结果，长、整句建议使用 人工翻译 。
本文阐述了新与旧国家标准《机械制图》中有关简化画法和规定画法的区别。
In this paper, we expounded the difference about simplified drawing and stipulative drawingbetween new and old state criterions.
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