基本解释溴化铵同根派生 英汉例句hexadecyl trimethyl ammoniumbromide 十六烷基三甲基溴化铵Keywords Silver nanoparticles;Triangle;Circularity;Spindle;Centyltrimethyl ammoniumbromide（CTAB）; 银纳米颗粒;三角形;圆片形;纺锤形;CTAB;