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selective calling system

telecom. 选择呼叫系统; 选呼系统
selective call system
avia. 选择呼叫系统
 English thesaurus
selective calling system
avia., Canada A system that provides an automatic and selective method of calling any aircraft. Voice calling is replaced by the transmission of code tones to the aircraft over the international radiotelephony channels. This system is installed on all international frequencies at Canadian stations.
selective calling system
: 1 phrase in 1 subject
Communications1

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