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to phrases
calling signal
telecom.
呼叫信号
call signal
commun.
呼叫〔识别〕信号
mil., air.def.
呼叫
识别
信号
calling signal
:
15 phrases
in 7 subjects
Aviation
1
Communications
4
Electronics
2
Information technology
1
Logistics
1
Rail transport
1
Technology
5
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