通过携号转网服务，她保留了原来的号码并更换了运营商。

She changed her mobile operator through ___MNP while keeping her original number.

我们无法接受低于最低议定价格的报价。

We cannot accept any offer below the ___MNP.

该城市正在部署MNP（大规模网络平台）以连接其所有智能交通系统。

The city is deploying an ___MNP to connect all its smart transportation systems.