第二类: second kind; second species通讯: communication服务: give service to; be in the s ...通讯服务: communication services通讯服务器: communication server; server, communication个人通讯服务: personal communication services航空通讯服务: aeronautical communications service基本通讯服务: basic communications services; services basic communications; services, basic communications通讯服务软件: netware communication services software卫星通讯服务: satellite services先进通讯服务: advanced communications service; service, advanced communications (acs)邮递通讯服务: postal communication services终止通讯服务: abort service个人随身通讯服务: personal communication service固定航空通讯服务: aeronautical fixed service固定网路通讯服务: fixed networks services固定网络通讯服务: fixed networks services; services联机通讯服务公司: netcom on line communication services inc通讯服务管理器: communication services manager通讯服务有限公司: communication services ltd休斯通讯服务公司: hughes communications services, inc移动网路通讯服务: mobile networks services异步通讯服务器: asynchronous communication server电子公告牌服务（通讯服务）: electronic bulletin board services第二类: second kind; second species◇第二类超导体 typeⅡsuperconductor
