信息安全 密码理论与技术 释文 symmetric cryptosystem 对称密码体制
- trigonometric solution
- trigonometric spline
- trigonometric substitution
- trigonometric sum
- trigonometric-sum estimate
- trigonometric system
- trigonometric transformation
- trigonometric weight
- trigonometry
- trigonometry angle
- trigon/trigonid
- trigonum
- trigraded ring
- trigram
- trihapto ligand
- trihedral
- trihedral angle
- trihedron
- trihydride sulfur
- triiodomethane
- triiodothyronine
- triisobutyl aluminium
- trikaya
- triketohydrindene
- triketone herbicide