undetermined nitrogen 未定氮...active nitrogen 活性氮...carbon-nitrogen cycle 碳-氮环...justifiable nitrogen 实氮...nuclear nitrogen 环中的氮...nitrogen acid anhydride 五氧化二氮...basic nitrogen in oils 油中碱性氮(化石物)...amide nitrogen 酰胺氮酰胺氮...nonprotein nitrogen 非蛋白氮...imino nitrogen 亚氨型氮...oxides of nitrogen 氧化氮...mustard nitrogen 氮芥...nitrogen trioxide 三氧化二氮...usea nitrogen 脲氮,尿素氮...pentoxide nitrogen 硝酸酐,五氧化二氮...nitrogen degradation 氮降解;土壤中氮降解...illegitimate nitrogen 虚氮,非实氮...ethods for nonprotein nitrogen 非蛋白氮测定法...Kjeldahl-Gunning method (for nitrogen determination) 克耶达-冈宁定氮法...authentic nitrogen 实氮(摄取的氮在组织或排泄物中...ammonium nitrogen fertilizer 铵态氮肥...
交流互动
发表言论