估计是网上下载图像后，先在电脑上做颜色亮度对比度处理，再用大尺寸工程图纸打印机打印的。

来源: 近仁1995 于 2017-11-17 16:41:12 [旧帖] [给我悄悄话] 本文已被阅读：次

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