[计] continuous wave radio telegraph

lián xù bō wú xiàn diàn diàn bào ㄌㄧㄢˊ ㄒㄩˋ ㄅㄛ ㄨˊ ㄒㄧㄢˋ ㄉㄧㄢˋ ㄉㄧㄢˋ ㄅㄠˋ