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n. 分贝decibel的简写

分贝decibel的简写

Taiwan MOE computer dictionary (moecomp)

dB
分贝

WordNet (r) 3.0 (2006) (WordNet)

Db
n 1: a transuranic element [synonym: {dubnium}, {Db}, {hahnium},
{element 105}, {atomic number 105}]
2: a logarithmic unit of sound intensity; 10 times the logarithm
of the ratio of the sound intensity to some reference
intensity [synonym: {decibel}, {dB}]

The Free On-line Dictionary of Computing (foldoc)

{database}

V.E.R.A. -- Virtual Entity of Relevant Acronyms (June 2006) (vera)

DataBase

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Cheap Train Tickets | Timetables for Germany Europe - Deutsche Bahn
Deutsche Bahn: int bahn de - Your mobility portal for travelling by rail Information, train tickets, online tickets, regional day tickets, low-cost offers for holidays and travel
Deutsche Bahn
Every day, more than five million people travel with Deutsche Bahn - in ICE and Intercity trains, in regional express trains or in regional and suburban trains
分贝（计量单位）_百度百科
分贝（decibel）是表示两个相同单位的物理量数量比例的单位，主要用于度量声音强度或电信号的功率级别，常用dB 表示。它用对数尺度表达功率或根功率量的两个值的比率。 1 分贝（dB）=0 1 贝尔（B）。
Deutsche Bank
Discover Deutsche Bank, one of the world’s leading financial services providers News and Information about the bank and its products
dB、dB、dBm、dBi究竟是啥？ - 知乎 - 知乎专栏
dB 应该是无线通信中最基本、最习以为常的一个概念了。我们常说“传播损耗是xx dB”、“发射功率是xx dBm ”、“天线增益是xx dBi ”……有时候，这些长得很像的dBx们可能被弄混，甚至造成计算失误。它们究竟有什么区别呢？这事不得不先从 dB 说起。
什么是分贝（dB）？ - RT
可以将dB级别视为一个级别相对于其他级别的相对增益，或者对于已知参考级别而言，是绝对对数刻度级别。分贝是无量纲的单位。 bels中的比率是P 1 和P 0 的比率的以10为底的对数：比率B = log 10 （P 1 P 0）分贝是贝尔的十分之一，因此1贝尔等于10分贝： 1B = 10dB
dB: What is a decibel? - UNSW Sites
Hence, a factor of 2 in power corresponds to 3 01 dB, which we should normally write as 3 dB because, as you can discover for yourself in hearing response, decimal points of decibels are usually too small to notice
DB International Operations
We are part of DB E C O Group and we operate and maintain rail infrastructure as well as rolling stock for passenger and freight transport
What is a decibel (dB)? - RapidTables. com
The dB level can be viewed as relative gain of one level vs other level, or absolute logarithmic scale level for well known reference levels Decibel is a dimensionless unit
Cheap Train Tickets | Timetables for Germany Europe - Deutsche Bahn
Deutsche Bahn: Discover Germany and Europe by train! Here you can find all offers and timetable information as well as booking options Please select your preferred language:

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