decibel是什么意思_decibel怎么读_中英文释义(含例句用法)

decibel (n.): 1928, from deci- + bel (n.).
Progress in science and industry is constantly demanding new terms and one of the latest of these is the word "decibel," coined by telephone engineers to describe the efficiency of telephone circuits. It is a substitute for the phrase "transmission unit." The actual unit decided upon was first called "bel," after the inventor of the telephone. The bel, however, is larger than is needed in practice, and, therefore, a unit one-tenth as large was adopted by engineers and named the decibel. ["Popular Mechanics," May 1929]

词态变化

复数 decibels;

权威造句

1. The decibel level was mounting.: 噪音在增强。

2. The most usual system is that of the decibel scale.: 最常用的系统为分贝标度系统.

3. A measure of sound intensity equivalent to one decibel at 1000 Hz.: 一种声强的量度单位,其值等价于1000Hz1分贝.

4. In sound we use the decibel scale.: 在声学中我们采用分贝标度.

5. Specified as a decibel value over a frequency range.: 以特定频率范围的分贝值表示.

近反义词

decibel log frequency characteristic 分贝对数频率特性...

decibel milliwatt 分贝毫瓦

decibel potentiometer 分贝电位计

decibel measurement 分贝测定

adjusted decibel 调整分贝

decibel gain 分贝增益

aircraft decibel rating 飞机分贝等级...

decibel adjusted 调整分贝

perceived noise decibel 感觉噪声分贝...

decibel chart 分贝列线图

decibel volt 伏特分贝

decibel scale 分贝标度

decibel calculator 分贝计算图表...

decibel loss 分贝衰耗

decibel hertz 分贝赫

decibel meter 分贝计,分贝表...

相似短语

decibel scale 分贝刻度

decibel loss 分贝衰减

new decibel 新分贝

decibel calculator 分贝计算图表

decibel meter 分贝表，分贝计

decibel potentiometer 分贝电位计

decibel (dB) 分贝

decibel adjusted 调整分贝

decibel measurement 分贝测定

decibel approximation 【计】分贝的近似值

单词分析

暂无,等待补充.

记忆方法

暂无,等待补充.

decibel是什么意思，decibel怎么读

decibel基本信息

英英释义

中英词源