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选择性衰落
avia. selective fading (电离层密度变化引起信号的失真,故衰落随频率而变化)
space selective fading (电离层密度变化引起信号的失真)
telecom. selective fading
选择性衰落
: 6 phrases in 4 subjects
Information technology1
Space3
Technology1
Telecommunications1