• TV sets and radios add up to 90 or J00 decibels, a certain unit used to measure the loudness of sound.

    电视机收音机起来90J 00分贝单位用来测量声音响度

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  • The decibel is the unit used to measure the loudness of sound.

    分贝用来测定声音大小单位

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  • Sound is a form of energy transfer and we could define loudness in terms of the energy per unit of time or power output of the sound, but it wouldn't give the complete picture.

    声音能量传递一种形式我们可以单位时间的能量,声音产生的能量为衡量响度还不全面。

    iask.sina.com.cn

  • Sound is a form of energy transfer and we could define loudness in terms of the energy per unit of time or power output of the sound, but it wouldn't give the complete picture.

    声音能量传递一种形式我们可以单位时间的能量,声音产生的能量为衡量响度还不全面。

    iask.sina.com.cn

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