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R=R1*R2/(R1+R2) ,ÇóR¶ÔR1µÄµ¼Êý£¿ÎÒËã³öµÄ´ð°¸ÊÇ-R2£¨R1+R2)^(-2) , ÎÒÏëÖªµÀÎÒÊÇ·ñËã¶ÔÁË¡£

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R2^2/( R1+R2)^(-2)

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2Â¥2013-04-19 13:50:10
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gaoyouya

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2Â¥: Originally posted by aС°² at 2013-04-19 13:50:10
R2^2/( R1+R2)^(-2)

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3Â¥2013-04-20 03:15:47
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zhan_meilong

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R2^2/(R1+R2)^2
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