网络与数据通信 协议体系与组成结构 释文 connection-oriented protocol 面向连接的协议
- urban justice
- urban labor market
- urban land rent theory
- urban landscape in ancient China
- urban landscape of scenic regions
- urban landscaping systematic mangement
- urban land system in China
- urban land use
- urban land-use
- urban land use arrangement
- urban land use planning
- urban language
- urban legend
- urban lifestyle
- urban livability
- urban logistics
- urban logistic system
- Urban Management And Law Enforcement
- urban master plan period
- Urban medical and health service system
- urban metabolism
- urban meteorological disaster
- urban meteorology
- urban migrant
- urban military geography