管理学 电子商务支付技术 释 Digital cash 数字现金 经银行数字签名的表示现金的加密序列数。是以数据形式流通的、能被客户和商家接受的、通过因特网购买商品或者服务时使用的货币。又称电子现金，适合网上小额实时支付。
计算机应用 基于网络的信息服务 释文 electronic currency, e-currency, e-money, cyber-currency 电子货币
- underpressure
- underquenching
- under-relaxation
- underrelaxation
- underrelaxation factor
- underrelaxation method
- underscore
- underscreened Kondo effect
- undersea cable
- undersea delta
- undersea farm
- undersea feature names
- undersea mining technology
- undersea plantation
- undersea ship/underwater craft
- undersea space station
- undershoot
- undershooting
- undersize
- undersocialized
- undersonic frequency
- underspeed
- understandability
- understandable
- understanding