deamplification
n. 衰减信号
例句
Due to satellite communication's long channel, far distance transmission and its wave through troposphere and ionosphere often brings the signal deamplification, noise and wrong code.
由于卫星通信信道长,传输距离远,电波要穿过对流层和电离层,易使信号衰减,引入噪声,造成误码。