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sansummer:自己回帖吧查了国标有如下公式: `R_;n#3F0 ....... (2011-06-29 10:24) {} Zqaf
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sansummer:自己回帖吧查了国标有如下公式: 9i+`,r ....... (2011-06-29 10:24) 63Z^ k(