telecommunication operation的用法和樣例：
例句
- The billing system is the core competitive power of the telecommunication business.
電信業務的計費系統是電信運營商的核心競爭力之一。 - The research results herein can offer beneficial reference in the development public telephone system for the telecommunication operator.
本文的研究成果為電信運營商在發展公用電話系統中可提供有益的參考。
