impulse dialing 中文意思是什麼
impulse dialing
解釋
脈沖撥號-
Strowger system introduced in australia and new zealand. development of key - type impulse sender, and simplex dialing on toll lines
澳大利亞和紐西蘭引進史端喬系統。開發鍵式脈沖發送器和長途電話線單工撥號。
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