chemical reductionˈkemikəlriˈdʌkʃən短语¹⁴⁴⁹⁷²⁺² 基本例句 化学还原 Four different categories of metallic complex colloids were prepared by chemical reduction, and studied on their absorption spectrum, formation mechanism and SERS- activity. 本文研究了四种金包裹银的复合胶体的制备，并对其吸收光谱、形成机制以及表面增强拉曼光谱 SERS活性进行了讨论。 chemyq