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Many businesses use telephony for customer support.
许多企业使用电话通信进行客户支持。
电话技术；电话通信
声音的电磁波传输；通过电磁波谱进行声音传输的行为。；电话技术的研究与应用。；电话学
通过电磁波谱进行声音传输的行为。
The act of sound transmission via the electromagnetic spectrum.
电话技术的研究与应用。
The study and application of telephone technology.
The company provides internet telephony services to small businesses.
这家公司为小企业提供互联网电话服务。
用法提示：telephony 是名词，表示电话通信技术，此处用作定语修饰 services。
Modern telephony relies on digital signals rather than analog ones.
现代电话通信依赖数字信号而非模拟信号。
用法提示：telephony 作主语，指电话通信这一技术领域。
He studied telephony at a technical college and now repairs phone lines.
他在技术学院学习电话技术，现在修理电话线路。
用法提示：telephony 作宾语，表示电话技术的学科或应用。
Many businesses use telephony for customer support.
许多企业使用电话通信进行客户支持。
Recent advances in telephony have improved voice quality.
电话通信的最新进展改善了语音质量。
注意：internet telephony也可称为VoIP。
The service is based on internet telephony.
该服务基于互联网电话通信。
grammar · medium
易错句子I had a long telephony with my friend.
正确表达I had a long telephone call with my friend.
Telephony 是不可数名词，表示电话通信技术或系统，不能表示一次具体的通话。应使用 telephone call 或 phone call。
grammar · medium
易错句子I will telephony you when I arrive.
正确表达I will telephone you when I arrive.
Telephony 是名词，不能用作动词。表示打电话应用动词 telephone 或 call。
telephony指电话通信技术或电话学，telephone指具体的电话设备
telephony指通过电话进行语音通信，telegraphy指通过电报进行文本通信
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