Nilon.镍铬低膨胀系数合金镍
niln.无;零
nil contact angle无接触角
nilpotent algebra幂零代数
Nilpotent Lie ring幂零Lie环
Nilaparvata lugensn.褐飞虱
nilpotent subgroup幂零子群
Nilautama castanean.栗色扬角蝉
Nilgiri Flycatchern.尼尔吉里鹟
Nilaparvata bakerin.拟褐飞虱
Nilpotent Matrices幂零矩阵
nilpotent operator幂零算子