A special nomograph designed for calculating the normal specific acoustic impedance is proposed.
本文提出一种为计算法向声阻抗率而设计的专用列线图。
The design of reliable high speed communication systems for power line communication (PLC) requires an accurate knowledge of such channel specific characteristics as attenuation, impedance and noise.
为了设计基于电力线通信（ PLC）的高速可靠通信系统，必须了解衰耗、阻抗、噪声等电力线信道特性。
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