短語(yǔ)詞組短語(yǔ)nitrogen doping source 氮摻襍源inorganic nitrogen source 無(wú)機(jī)氮源plasma activated nitrogen source 等離子激活氮源free nitrogen source 遊離氨基氮only nitrogen source 唯一氮源metabolism of nitrogen source 氮源代謝supplementary nitrogen source 補(bǔ)充氮源different nitrogen source 不同氮源regradable nitrogen source 再循環(huán)氮源 返回 nitrogen source