amplification

英 [ˌæmplɪfɪˈkeɪʃn]

美 [ˌæmplɪfɪˈkeɪʃn]

n.  扩大（充）；膨胀

复数：amplifications　

TOEFL化学

BNC.12886 / COCA.17701

柯林斯词典

• VERB （通常用电子设备）放大，扩大（声音）
  If youamplifya sound, you make it louder, usually by using electronic equipment.
  1. This landscape seemed to trap and amplify sounds...
     这种地貌好像可以笼住并放大声音。
  2. The music was amplified with microphones...
     音乐声通过麦克风被放大。
  3. 'This is the police,' came the amplified voice from the helicopter.
     “我们是警察，”直升机上传来扩音器中的声音。
• VERB 增强；加强
  Toamplifysomething means to increase its strength or intensity.
  1. The mist had been replaced by a kind of haze that seemed to amplify the heat...
     薄雾散了，取而代之的是一种似乎更添酷热的烟霭。
  2. Her anxiety about the world was amplifying her personal fears about her future.
     她对世界的忧虑加剧了她对自己未来的恐惧。

英英释义

noun

• (electronics) the act of increasing voltage or power or current
• addition of extra material or illustration or clarifying detail
  1. a few remarks added in amplification and defense
  2. an elaboration of the sketch followed
  Synonym:elaboration
• the amount of increase in signal power or voltage or current expressed as the ratio of output to input
  Synonym:gain

双语例句

• Requirements of weak extremely low distortion audio signal to large dynamic amplification.
  要求能极低失真地对微弱音频信号进行大动态放大。
• The fluorescence, mode field and amplification characteristic of the fiber were tested.
  对光纤的荧光特性、模场特性以及放大特性进行了测试。
• Particularly, the dynamics of soliton periodic distributed amplification system is discussed in detail.
  特别地，详细讨论了孤子周期分布放大系统的动力学行为。
• For audio amplification, a class A amplifier can be either single-ended or push-pull.
  对于音频放大，一个A类放大器可单端或推挽。
• Due to insertion loss, the signal may require amplification.
  由于存在插入损耗，所以信号可能需要放大。
• It is shown that Raman amplification can counteract the effects of two-photon absorption.
  结果表明，喇曼放大可以抵消双光子吸收的影响。
• In regulation of SRC-3 protein expression, there may be other mechanism except for SRC-3 gene amplification.
  在SRC-3的蛋白表达调控中，可能存在着SRC-3基因扩增以外的其它调节机制。
• Amplified circuit. Unidirectional or both-way amplification can be specified.
  放大器电路。可指定单向或双向放大。
• Objective To develop a hybridization signal amplification method for detection of Mycobacterium tuberculosis.
  目的建立结核分枝杆菌杂交信号放大检测方法。
• This paper introduces ECG amplification, filtering and so on.
  本文主要介绍了心电信号的放大，滤波等。