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.
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 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.
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。
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