【中文版】

中国联通属于通信行业，是中国三大电信运营商之一。其经营范围涵盖了移动通信、固定通信、宽带接入、数据增值、电子商务等业务领域。作为国内领先的通信服务提供商，中国联通在全国范围内拥有庞大的客户群体和广泛的网络覆盖，致力于为客户提供高效、便捷、安全的通信服务。

中国联通在通信行业中具有重要地位，其业务范围已经渗透到各个领域，为人们的生活和工作提供了不可或缺的通信支持。随着5G等新兴技术的发展，中国联通将继续加大投入，推进技术创新，拓展新的业务领域，以适应不断变化的市场需求，并为客户提供更加优质的服务。

【英文版】

China Unicom belongs to the telecommunications industry and is one of the three major telecom operators in China. Its business scope covers mobile communication, fixed communication, broadband access, data value-added services, e-commerce and other related fields. As a leading telecom service provider in China, China Unicom has a large customer base and a wide network coverage across the country, providing efficient, convenient and secure communication services to its customers.

China Unicom plays an important role in the telecommunications industry, and its business scope has penetrated into various fields, providing indispensable communication support for people's lives and work. With the development of emerging technologies such as 5G, China Unicom will continue to increase investment, promote technological innovation, expand new business areas, adapt to changing market needs, and provide customers with better services.