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VSWR=（1+（Pr/P开平方）/（1-（Pr/P开平方） VSWR=（1-（Pr/P开平方）/（1+（Pr/P开平方） VSWR=（（Pr/P开平方+1）/（1+（Pr/P开平方） VSWR=（1+（Pr/P开平方）/（（Pr/P开平方-1）
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PR=15~PR=25 PR=25~PR=35 PR=35~PR=45 PR=14~PR=55
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