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引用第5楼搭建木屋于2007-07-27 22:48发表的 回 3楼(win701) 的帖子 : DRS68^ 其实我开始也这样想的,但是后来发现没有一定的数学基础对电磁场和微波方面很多的推导根本看不懂,仅仅记下结论好像又不是理解的很透,往往会忘记。所以才有此想法
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