decibel

英 ['desɪbel]美 ['dɛsɪbɛl]
  • n. 分贝
TEM4 GRE 畅通词汇

中文词源

decibel 分贝

deci-, 十分之一。bel, 音量单位，来自19世纪苏格兰电话设计工程师Alexander Bell.

英文词源

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]

双语例句

1. The decibel level was mounting.
噪音在增强。
来自柯林斯例句
2. The most usual system is that of the decibel scale.
最常用的系统为分贝标度系统.
来自辞典例句
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.
来自辞典例句
4. In sound we use the decibel scale.
在声学中我们采用分贝标度.
来自辞典例句
5. Specified as a decibel value over a frequency range.
以特定频率范围的分贝值表示.
来自互联网