Furthermore, the connectionless transport service is also very similar to the connectionless network service.

另外，无连接的传输服务与无连接的网络服务也非常类似。

youdao

As carrier network, optical transport network must be built prior to the 3g service network.

作为业务承载网络的3g光传送网，必须要先于业务网络的建设而建设。

youdao

As carrier network, optical transport network must be built prior to the 3g service network.

作为业务承载网络的3g光传送网，必须要先于业务网络的建设而建设。

youdao