nitrogenasen.[生化]固氮酶
nitrogenn.氮
nitrogen-limitation氮限制
nitrogen-heat ratio氮热比值
nitrogen distribution氮的分布,氮素散布
nitrogen-conserving保氮
nitrogen-solubility氮溶解度
nitrogen gas flooding氮气驱
nitrogen-adsorptionn.氮吸附
Nitrogenous cast iron含氮铸铁
Nitrogen-foam agents氮气泡沫剂
nitrogen foaming agent氮气泡沫调驱