请直接联系当地通讯管理局咨询办理。

Please directly contact with the local telecommunications administration consulting is dealt with.

youdao

型号及规格请直接联系。

Models and specifications please contact.

youdao

请直接联系制造商寻求服务，保修，退还和退货信息。

Contactthe manufacturer directly for service, warranty, return, and refund information.

youdao

So directly deal with the powers that be.

所以请直接和相关负责人联系

耶鲁公开课 - 基础物理课程节选