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    Դϵy(tng)͂y(tng){(dio)O(sh)ӋbкܴIJÿһͥÑmϰbԴϵy(tng)xԴϵy(tng)횷ԭt

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    2.ܵһ©ˮ[ˮܲ~ǘ40ҵй¶yԇ

     

    3.ԭIJһ˵ԴC(j)҃(ni)C(j)ߴ缰^L(fng)ض^C(j)ҪӴL(fng)x^L(fng)C(j)ܱCЧһҪ510dB(A),(ni)C(j)߶Ҫ35M

     

     

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    xԴϵy(tng)Ҫһ(bio)(zhn)ͶY؈Ͷ̫ߣڳɱղôxԴϵy(tng)xԴϵy(tng)\Ч^M^ͶY؈ʸxԴá

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