This Recommendation gives an overview of methods and general principles to be followed in organizing an International Telephone Directory Assistance Service.

本建议对组织国际电话查号业务所遵循的方法和一般原则提出一个总的看法。

youdao

This Recommendation gives an overview of methods and general principles to be followed in organizing an International Telephone Directory Assistance Service.

本建议对组织国际电话查号业务所遵循的方法和一般原则提出一个总的看法。

youdao