数据库 数据库管理系统及其实现技术 释文 materialized query table 物化查询表
- hydrogenation technology of low temperature coal tar
- hydrogen atom
- hydrogen atomic spectrum
- hydrogen-atom Rydberg tagging technique
- hydrogenator
- hydrogen beam standard
- hydrogen bomb
- hydrogen bond
- hydrogen bond cluster
- hydrogen-bonded solid
- hydrogen bonding
- hydrogen bridge
- hydrogen bromide
- hydrogen bubble method
- hydrogen burning
- hydrogen cell
- hydrogen chloride
- hydrogen clock
- hydrogen cloud
- hydrogen coal process
- hydrogen content
- hydrogen convection layer
- hydrogen conversion
- hydrogen coolant
- hydrogen corona