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lower carrier中文是什么意思

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用"lower carrier"造句"lower carrier"怎么读"lower carrier" in a sentence

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例句与用法

  • For low carrier - gas velocities the hetp may become large owing to molecular diffusion effects
    载气线速低时, hetp是靠分子扩展影响而变大。
  • For medium or long distance underwater acoustic communication , the narrow bandwidth and low carrier frequency only supports low bit - rate signal transmission
    对于中、远距离的水声通信而言,水声信道的窄带宽、低载波频率特性只能支持较低的信息传输速率。
  • 3 the carrier transportation and transition in led active layer had been analyzed . the larger number of quantum wells are in active layer , the lower carrier density will be , and the better confinement of carrier is
    ) y方向上的有效质量减小,而轻空穴则具有负的有效质量,这对器件电注入和光辐射复合是有利的。
  • With the characteristics of large ambient noise , very narrow bandwidth , low carrier frequency , great propagation latency and time - space - frequency variant multipath effect ( mpe ) , the stochastic ocean channel has demonstrated the greatest complexity and difficulty for underwater acoustic wireless communications . among them multipath effect ( mpe ) is the most difficult obstacle that results in signal fading and inter - symbol interference ( isi )
    但是噪声高、带宽窄、载波频率低、传输时延大、多途径效应随时间?空间?频率变化等信道特性都会给有效、可靠的水声通信带来很大的麻烦,其中多途径效应是最主要的困扰因素,它会导致信号幅度衰落和码间干扰。
用"lower carrier"造句  
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