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电信专业英英词典D-7

时间:2006-08-18 16:00:00

(单词翻译:单击)

  DSU

  data service unit

  DTMF

  dual1 tone multiple frequency

  DTS

  digital termination service

  Dual-Tone Multiple Frequency (DTMF)

  the generic2 name for the tone signaling scheme used to signal from telephones to switching equipment, in which 10 decimal digits3 and two auxiliary4 characters are represented by selecting two frequencies of the following group: 697, 770, 852, 941,1209,1336,1447 Hz.


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1 dual QrAxe     
adj.双的;二重的,二元的
参考例句:
  • The people's Republic of China does not recognize dual nationality for any Chinese national.中华人民共和国不承认中国公民具有双重国籍。
  • He has dual role as composer and conductor.他兼作曲家及指挥的双重身分。
2 generic mgixr     
adj.一般的,普通的,共有的
参考例句:
  • I usually buy generic clothes instead of name brands.我通常买普通的衣服,不买名牌。
  • The generic woman appears to have an extraordinary faculty for swallowing the individual.一般妇女在婚后似乎有特别突出的抑制个性的能力。
3 digits a2aacbd15b619a9b9e5581a6c33bd2b1     
n.数字( digit的名词复数 );手指,足趾
参考例句:
  • The number 1000 contains four digits. 1000是四位数。 来自《简明英汉词典》
  • The number 410 contains three digits. 数字 410 中包括三个数目字。 来自《现代英汉综合大词典》
4 auxiliary RuKzm     
adj.辅助的,备用的
参考例句:
  • I work in an auxiliary unit.我在一家附属单位工作。
  • The hospital has an auxiliary power system in case of blackout.这家医院装有备用发电系统以防灯火管制。