ringing and tone for telephone automatic switching network
Related Translations:
铃: 名1.(金属制成的响器) bell 短语和例子电铃 an electric bell; 警铃 alarm bell; 门铃 door bell2.(铃状物) bell-shaped things 短语和例子哑铃 dumbbell; 杠铃 barbell3.(蕾铃) boll; bud 短语和例子棉铃 cotton boll; 落铃 shedding of cotton bo