短語詞組短語active atomic nitrogen 活性氮原子active organic nitrogen 活性有機(jī)碳active organic nitrogen pool 活性有機(jī)氮庫active nitrogen atom 活性氮原子active nitrogen species 活性氮active nitrogen atoms 活性氮原子nitrogen active species 氮活性粒子nitrogen heterocyclic active compounds 含氮雜環(huán)活性化合物nitrogen containing active components 含氮活性組分 返回 active nitrogen