例句與造句

1. Speech communication is very important and indispensable service in different modem communication systems
   在現(xiàn)代各種通信系統(tǒng)中，語音通信一直是一項(xiàng)非常重要的、必不可少的業(yè)務(wù)。
2. The design about power amplifiers is much a challengeable topic , especially in the more complicated performance of modem communication systems . it is very significant making a thorough and careful study on the design of the power amplifier
   其設(shè)計(jì)是一個(gè)極富挑戰(zhàn)的研究課題，特別在通信系統(tǒng)功能越來越復(fù)雜的今天，對(duì)它進(jìn)行深入細(xì)致的研究非常有意義。
3. It's difficult to find modem communication system in a sentence. 用modem communication system造句挺難的