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sansummer:自己回帖吧查了国标有如下公式: 8'o6: ....... (2011-06-29 10:24) O^sOv!!RH/
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sansummer:自己回帖吧查了国标有如下公式: Cnv?0to2l ....... (2011-06-29 10:24) v`Yj)
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