- Hydrotreating Processes and Engineering
- hydrotreatng
- hydrotropism
- hydrotubation
- hydroturbine inlet valve
- hydroupgrading
- hydrous melt
- hydrous melting curve
- hydrous minerals
- hydroxide
- hydroximic acid collector
- hydroxyalkylation
- hydroxyapatite
- hydroxyapatite，HA
- hydroxy bridge
- hydroxycyclopentane
- hydroxyethyl cellulose
- hydroxyl
- hydroxylamine
- hydroxylase
- hydroxylate anomaly
- hydroxylation
- hydroxyl maser
- hydroxyl radical
- hydroxyl terminated polybutadiene propellant