管理学 GtoC型电子政务 释 electronic signature 电子签名 数据电文中以电子形式所含、所附用于识别签名人身份并表明签名人认可其中内容的数据。
信息安全 密码理论与技术 释文 electronic signature 电子签名
- urban traffic construction management system
- urban traffic management platform
- urban traffic management system
- urban traffic system
- urban traffic tunnel fire
- urban transportation
- urban transportation demand management
- urban transportation development policy
- urban transportation economy
- urban transportation layout
- urban transportation planning
- urban transportation problems in China
- urban transportation structure
- urban transportation supply management
- urban transportation system organization
- urban transport infrastructure
- Urban Transport of China
- urban TV drama
- urban underground space
- urban underground space development and utilization
- urban underground space planning
- urban units and residential areas in China
- Urbanus
- urban utility tunnel
- urban vegetation