active nitrogen atom 活性氮原子
active nitrogen atoms 活性氮原子
active atomic nitrogen 活性氮原子
active organic nitrogen pool 活性有机氮库
nitrogen active species 氮活性粒子
nitrogen containing active components 含氮活性组分
nitrogen heterocyclic active compounds 含氮杂环活性化合物
These microbes enable the soil to have more nitrogen, which plants need to live and they remain quite active during the winter.
这些微生物可以让土壤中植物生长所需的氮含量增加，在冬天让植物仍保持活跃。
The catalyst active stability can be more fully recovered by regeneration carried out in three steps in succession, namely, benzene extraction, nitrogen blowing and coke burning.
按苯抽提、氮气吹扫、烧焦的顺序，分三个阶段进行催化剂再生，再生催化剂的活性稳定性得到更充分的恢复。
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。
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