decibel
英 ['des?bel]
美['d?s?b?l]
- n. 分貝
TEM4GRE暢通詞匯
詞態(tài)變化
復(fù)數(shù):?decibels;
中文詞源
decibel 分貝
deci-, 十分之一。bel, 音量單位，來自19世紀(jì)蘇格蘭電話設(shè)計(jì)工程師Alexander Bell.
英文詞源
- 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]
雙語例句
- 1. The decibel level was mounting.
- 噪音在增強(qiáng)。
來自柯林斯例句
- 2. The most usual system is that of the decibel scale.
- 最常用的系統(tǒng)為分貝標(biāo)度系統(tǒng).
來自辭典例句
- 3. A measure of sound intensity equivalent to one decibel at 1000 Hz.
- 一種聲強(qiáng)的量度單位,其值等價(jià)于1000Hz1分貝.
來自辭典例句
- 4. In sound we use the decibel scale.
- 在聲學(xué)中我們采用分貝標(biāo)度.
來自辭典例句
- 5. Specified as a decibel value over a frequency range.
- 以特定頻率范圍的分貝值表示.
來自互聯(lián)網(wǎng)