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 The mist had been replaced by a kind of haze that seemed to amplify the heat...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

• The DNA amplification technique is used in genome sequencing, forensics and the diagnosis of various diseases.
  这种DNA的放大技术被用于多种疾病的检验，诊断和基因组序列的测定。
• We also developed a new low-noise photodiode signal amplification circuit to further improve sensitivity.
  同时，已经研制了新的低躁声光电信号放大电路，将用于以后的灵敏度改进。
• 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。
• By changing the amplification multiple through DAC signals, the measurement range of the system is improved.
  用DAC芯片程控信号调理电路的放大倍数，提高了系统的测量范围。
• 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。
• This Bi-doped fiber is promising for broadband optical amplification and widely tunable laser.
  此光纤有望成为宽带光放大和调谐激光材料。
• 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。
• 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。
• A single-frequency single-polarization narrow-linewidth Erbium doped loop fiber laser and its amplification configuration were demonstrated.
  报告了一个带单级放大结构的单频单偏振窄线宽环形腔结构掺铒光纤激光器系统。
• 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。