N m(=newton-meter) 牛顿米
nn.字母n
N-fertilizer application patterns施氮方式
N.Goswamy und Eberhard Fischer.作者声明: von B.
n-dimensional pseudo-manifold n维伪流形
N transportation and transformation氮迁移转化
N-dihydroxyethyl-acetoacetamide均匀设计
N - methylene phosphonic chitosan磷酸化壳聚糖
n-Morpholinomethyl-Pyrazinamide吗甲吡嗪酰胺