lower carrier meaning in English
底部承载板
Examples
- 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。