de-N-methylation 脱氮甲基反应
N -methylation N-甲基化
15N isotope dilution method ~(15)N同位素稀释法
alkali N-proliferation method 碱解扩散法
application methods of N fertilizer 施氮技术
Enzymatic deacylation of N-acetyl-DL-methionine N-Ac-DL-Met酶拆分液
N application method 施氮方法
N application methods 施氮方式
N fertilization method N肥配施方法; 氮肥运筹
n-Butyl Methacrylate esterification 甲基丙烯酸丁酯
NH3-N elimination method 氨氮处理技术
N-methyl diethano lamine solution N-甲基二乙醇胺溶液
N-Methylacridinium cation N-甲基-吖啶正离子
n-propyl alcohol-water coprecipitation method 正丙醇-水共沉淀法
N methy1 N nitro N nitrosoguanidine mutation 亚硝基胍诱变
section n-n n-n 剖面
(Br2BN3)(n) n=1~4 (Br2BN3)(n)n=1~4簇合物
(CaN6)n (n=1~5) clusters (CaN6)n(n=1~5)团簇
(Cl2BN3)n(n=1-4) (C12BN3)n(n=1-4)簇合物