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document.write('    	<td height="18" bgcolor="#EDECE9">·[王大壮] 发表评论于 2012/3/21 21:10:55</td>');
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document.write('    	<td style="line-height:24px;font-size:14px;">&nbsp;凭本人经验，电源直流输出端的滤波电阻120K欧姆似乎过大了。估计120欧姆可能合适吧。</td>');
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