数据库 数据库管理系统及其实现技术 释文 database consistency 数据库一致性
- focusing control
- focusing criterion
- focusing cup
- focusing current
- focusing defect
- focusing distance
- focusing electrode
- focusing event theory
- focusing factor
- focusing foil
- focusing geometry
- focusing glass
- focusing glass measuring distance
- focusing hood
- focusing knob
- focusing lens
- focusing magnet
- focusing magnetic field
- focusing magnifier
- focusing method
- focusing mount
- focusing of sound
- focusing on infinity
- focusing optics
- focusing range