信息安全 信息系统安全防护技术 释文 security filter 安全过滤器
- pluming
- plum in Sui Dynasty
- Plum Island Animal Disease Center
- Plummer crater
- Plummer's law
- Plummer's model
- Plummer sphere
- plummet
- plumose structure/feather like structure
- Plum Performance Award
- plum pudding model
- plum rains
- plum rains in the Yangtze-Huaihe region
- plum-stone qi
- plumule
- plunge
- plunge direction
- plunge grinding
- plunge pool
- plunger
- plunger gas lift
- plunger gas lift method
- plunger pump
- plunging
- pluperfect number