utility band 中文意思是什麼

utility band 解釋
實用頻段
  • utility : n 1 有用,有益;實用,【經濟學】效用;功利;〈常 pl 〉 有用的東西。2 【哲學】功利主義。3 【戲劇】...
  • band : n 1 帶,繩;帶形物;箍;箍條;嵌條;鑲邊;鋸條; 〈pl 〉 (法官等的)寬領帶。2 束縛,羈絆;義務;...
  1. Firstly, the differences between a qpsk system and a tcm - 8psk system, and the difficulties in the latter ’ s realization are considered in detail, including the frequency band utility, the group delay effects, the filters ’ implementation, the base band processing and some key technologies

    首先考慮了tcm - 8psk系統與傳統的qpsk系統的不同,以及在實際工程中會遇到的一些困難。包括從整個系統方面考慮的帶寬利用率問題、群延遲問題、濾波器問題和基帶處理等問題,以及實現這樣一個系統的幾種關鍵技術。
  2. This article, from the points of principles, guidelines, needs analysis and utility in teaching materials preparing, after analyzing the writings of recent five years in get band iv & band vi, the english tests for the entrance examination to master degree as well ; and analyzing the needs of students, teachers and the society, points out the shortcomings in the compilation of writings in 21 ( superscript st ) century college english ( reading and writing ) and puts forward the author ' s own suggestions

    本文從教材編寫中的原則、需求分析和實用性角度,在分析了最近5年大學英語四、六級考試及碩士研究生入學考試英語作文題和學生、教師、社會的需求后,指出了川北醫學院目前使用的《 21世紀大學英語讀寫教程》編寫的不足並提出了自己的建議。
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