振鈴線 的英文怎麼說
中文拼音 [zhènlíngxiàn]
振鈴線
英文
ring line-
The dialing is slow and the system ca n ' t ensure the calling party fast and accurately put through the called one who is asked for receiving. 5. the bell ring is so low that the workers ca n ' t hear in the large - scaled working space with strong noise
它存在的缺點有:工程布線麻煩、費用高;電話線路成本高且利用率低;系統可靠性差;呼叫速度慢,並且不能保證主叫用戶快速、準確地找到需要接聽的被叫用戶;振鈴聲難以保證在大范圍、強噪聲的生產場所下的工作人員接聽到。Control leads that come from 1a2 key telephone sets to operate features like flashing of lights to indicate on hold, line ringing, etc
控制引導,來自1a2按鍵式電話,設置用於一些操作功能,如燈的閃爍用來表示摘機或線路振鈴等等。The telephone operator said to the caller : " hello, the number you wanted is ringing out now.
電話接線員對打電話的人說: 「喂,你要的那個號碼現在振鈴了。 」
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