active hydrogen atom

基本解释

The number of active hydrogen atoms attached to nitrogen atom of different classes of amine determine their effectiveness in extraction of metals by solvation.
根据与氮相连结的活性氢原子的多寡与有无，讨论了伯、仲、叔胺类溶剂化能力的强弱。
Hydrogen donor can provide active hydrogen atom to postpone or control the forming of the second liquid phase and effectively restrain the coking when catalyst and hydrogen were absent.
供氢剂在无催化剂和氢气存在条件下，可提供活性氢原子推迟或阻止第二液相的形成，有效抑制生焦；
BCATI, abbreviation for 4-Butoxy Carbonyl Amino Toluene 2-Tsocyanate, was reacted with the active hydrogen atom in hydroxy of epoxy resin E-20 and then the modified epoxy resin was obtained.
采用自制4-丁氧甲酰氨基甲苯2-异氰酸酯（简称BCATI）与E-20环氧树脂中羟基上的活泼氢反应，得到本改性环氧树脂；