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　　6 表面聲壓級與聲功率級的計(jì)算

　　6.1 表面聲壓級的計(jì)算

　　A計(jì)權(quán)表面聲壓級應(yīng)以A計(jì)權(quán)聲壓級的實(shí)測值(當(dāng)必須修正時(shí)，則 此值系指按5.3條表中修正后的值)按下式計(jì)算：�И�

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