数据库 数据库管理系统及其实现技术 释文 application recovery 应用层恢复
- nebula
- nebula filter
- nebular envelope
- nebular hypothesis
- nebular line
- nebular luminosity
- nebular physics
- nebular spectrograph
- nebular spectrum
- nebular stage
- nebular transition
- nebular variable
- nebulium
- nebulization
- nebulization efficiency
- nebulizer
- nebulizers
- nebulizer therapy
- nebulosity
- nebulous bridge
- nebulous cluster
- nebulous envelope
- nebulous object
- nebulous patch
- nebulous ring