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
- safety responsibility
- safety responsibility system
- safety review in flight test
- safety risk assessment
- safety risk management
- safety risk prevention and control for the hazardous chemicals port area
- safety risk prevention and control for the liquid cargo storage tank area
- safety risk prevention and control for the liquid cargo terminal
- safety risk prevention and control in the containers with hazardous chemicals
- safety risk prevention and control in the storage and transportation of fireworks and firecrackers
- safety routine technical specification for commercial coach
- safety science and technology award
- safety science and technology management
- safety screw
- safety service of museum
- Safety Set
- safety shoes
- safety shutdown time
- safety sign
- safety standard
- Safety standard for hydraulic structures
- safety standards for passenger aerial cableway
- Safety Stock
- safety supervision of blasting projects
- safety supervision of drilling operations