英文字典中文字典


英文字典中文字典51ZiDian.com



中文字典辞典   英文字典 a   b   c   d   e   f   g   h   i   j   k   l   m   n   o   p   q   r   s   t   u   v   w   x   y   z       







请输入英文单字,中文词皆可:


请选择你想看的字典辞典:
单词字典翻译
decibels查看 decibels 在百度字典中的解释百度英翻中〔查看〕
decibels查看 decibels 在Google字典中的解释Google英翻中〔查看〕
decibels查看 decibels 在Yahoo字典中的解释Yahoo英翻中〔查看〕





安装中文字典英文字典查询工具!


中文字典英文字典工具:
选择颜色:
输入中英文单字

































































英文字典中文字典相关资料:


  • Decibel - Wikipedia
    The number of decibels is ten times the number of bels (equivalently, a decibel is one-tenth of a bel) P and P0 must measure the same type of quantity, and have the same units before calculating the ratio
  • Levels Of Noise In Decibels (dB) Level Comparison Chart
    A noise level chart showing examples of sounds with dB levels ranging from 0 to 180 decibels As a frame of reference, here are the decibel levels of sounds you may encounter in your everyday life
  • What Are Decibels, and How Are They Measured? - HowStuffWorks
    Decibels serve as the universal yardstick for measuring sound intensity, capturing the vast range of audible sounds that the human ear can detect From the whisper-quiet rustle of leaves to the roaring blast of a jet engine, this logarithmic scale provides a nuanced way to understand sound levels
  • Decibel (dB) | Definition, Formula, Facts | Britannica
    decibel (dB), unit for expressing the ratio between two physical quantities, usually amounts of acoustic or electric power, or for measuring the relative loudness of sounds One decibel (0 1 bel) equals 10 times the common logarithm of the power ratio
  • Decibels Explained: What the Numbers Actually Mean
    It means ten times more sound energy Understanding what the decibel really measures is the first step to understanding everything else about how sound behaves in a space A decibel isn’t a unit of loudness—it’s a ratio
  • What Is a Decibel in Sound and How Is It Measured?
    A decibel (dB) is the unit used to measure how loud a sound is It works on a logarithmic scale, which means it doesn’t go up in equal steps like a ruler Instead, every 10-decibel increase represents a tenfold jump in the actual energy of the sound
  • Decibel Levels Chart: How Loud is Too Loud? | Safe Sound Guide
    Interactive decibel chart showing common sound levels from whispers to jet engines Learn exactly how long you can safely listen at each volume before hearing damage occurs
  • DECIBEL Definition Meaning - Merriam-Webster
    Because the decibel scale is logarithmic, a sound with an intensity that is twice that of a reference sound corresponds to an increase of little more than 3 decibels
  • How To Understand The Unit Of Decibels (Simple explanation)
    A decibel (dB) is a unit used to measure the intensity or power level of sound or signal It represents the logarithmic ratio between the measured value and a reference value, typically the threshold of human hearing
  • Decibel Levels Explained: Understanding dB in Audio and Sound
    Understand decibels from the basics Learn what dB SPL, dBFS, and dBu mean, how loudness perception works, and safe listening levels to protect hearing





中文字典-英文字典  2005-2009