词语呼叫信号
解释calling signal
calling signal〔名词〕呼叫信号详细»
calling signal呼叫信号详细»
呼叫信号call signal详细»
呼叫信号calling signal详细»
呼叫信号call up signal;calling information;calling signal详细»
呼叫信号call up signal详细»