基础运营商 meaning in Chinese

infrastructure carrier

From 1997 to 2002 , great changes had taken place to chinese telecommunication industry , such as the separating of post and telecom , the departing of china mobile and the dividing of telecommunication . after a series of reform , four biggest telecommunication enterprises - china telecom , china mobile , china unicom and china netcom came into being . then telecommunication industry " long time monopoly was replaced by competition
自1997年到2002年这5年间，中国的电信业发生了巨大的变化，邮(政)电(信)分离、寻呼剥离、移动脱离、电信分拆等一系列深度改革，孕育出了今天的中国电信、中国移动、中国网通、中国联通四大电信基础运营商。