电子产品的轻薄小巧化发展，致使电路板的布局也越趋紧凑，3mil的线宽与线距及高频板应用已非常普遍。 面对日益精密的电路板，传统的菲林尺等抄板手段已不能保证其精度与效率。 下面为大家介绍一种最方便最高效精准的抄板方法，只需要你稍有PROTEL电路基础就能轻易掌握。-Slim development of electronic products, resulting in circuit board layout is also becoming more compact, 3mil l

2011-2012年中国智能手机市场研究报告简版，主要纤细讲述智能手机发展概况和前景以及预期-The 2011-2012 Chinese smartphone market research reports, the simple version slim about smartphone development overview and prospects, as well as expected