摘要
本文分析了GB/T17453-1998《技术制图剖面区域的表示法》与GB4457.5-84《机械制图剖面符号》等标准在相应规定上的主要差异 ;提出GB/T17453中加粗轮廓线表示法的应用场合及其与涂黑表示法的根本区别。
The main differences between GB/T17453-1998 and GB4457.5-84 were analyzed in this article. The appropriate application of bold profile line stipulated in GB/T17453 was discussed, and the difference between this representation and black spreading representation was, then, pointed out.
出处
《化工设备与管道》
CAS
2000年第2期60-62,共3页
Process Equipment & Piping