continuous redial
is connectionless. Local area networks (LANs) are connectionless. Internet Protocol (IP) is a connectionless datagram service. See also always on, connection-oriented, datagram service, frame, LAN, packet, and X.25.
科学参考收录了5291条科技类词条，基本涵盖了常见科技类参考文献及英语词汇的翻译，是科学学习和研究的有利工具。