记忆方法
记忆“decibel”的方法是将其拆分成两个部分：“deci-”和“bel”。其中，“deci-”是“deca”的缩写，意味着“十”，而“bel”是以亚历山大·贝尔的名字命名的，代表声音强度的单位。想象一个声音强度增加10倍，你会说“10 decibels”（10分贝），这样就更容易记住这个单词表示声音强度的单位了。
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词族 · decibel
词形变化
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.
英语词源
- 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]
权威例句
- 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.