信息安全 信息系统安全防护技术 释文 virus resistant in network 网络病毒防范
- radish seed
- radium
- radium-223
- radium[223Ra]dichloride
- radium-226
- radium-228
- radium-beryllium neutron source
- radium isotope hydrogeology
- radium standard
- RADIUS
- radius
- radius function
- radius-luminosity relation
- radius-mass relation
- radius of a ball
- radius of a circle
- radius of a disk
- radius of affine curvature
- radius of an incircle
- radius of a sphere
- radius of beam waist
- radius of convergence
- radius of convexity
- radius of curvature
- radius of curvature in meridian