gun n injection 枪注法

boron n injection 硼注入

injection n 注射 ; 注射剂 ; 注入

gaas p-n junction injection laser 砷化镓光源

n-acetylcysteine injection 乙酰半胱氨酸注射液

injection n hole 注入孔

injection n lance 喷枪

injection n mould 注塑模

injection n mortar 注入灰浆

injection n gallery 灌入通道