"Local telecommunication service billing system" passed the test of Administration of China telecom.

“本地电信业务计费帐务系统”通过中国电信总局的测试。

youdao

"Local telecommunication service billing system" passed the test of Administration of China telecom.

“本地电信业务计费帐务系统”通过中国电信总局的测试。

youdao