文学 数字证书 释 digital certificate 数字证书 经证书授权中心（Certification Authority，CA）数字签名的包含公开密钥拥有者信息以及公开密钥的电子文档。CA是权威、可信赖、公正的第三方机构，专门负责为各种认证需求提供数字证书服务。
计算机应用 基于网络的信息服务 释文 digital certificate 数字证书
- variable ultrafast photographic shutter
- variable ultraviolet object
- variable valve lift
- variable valve mechanism
- variable valve timing
- variable valve timing system
- variable-velocity star
- variable voltage
- variable water flow central air-conditioning system
- variable X-ray source
- variable γ-ray source
- variace-covariance matrix
- variance
- variance analysis
- variance analysis of one-way grouping data
- variance analysis of subgroup data in group
- variance analysis of two-way data
- variance-balanced block design
- variance between classes
- variance between clusters
- variance between laboratories
- variance component
- variance component model
- variance component models
- variance-covariance analysis