decaln.(陶器；玻璃器皿的)贴花釉法；贴花纸Decn.十二月n.美国数字电子公司decfiminalization非犯罪化decapitated screw断头螺杆decauville waggon轻便斗车, 手推小车declarative token[计] 说明记号decachlorbiphenyl十氯代联苯declining compass偏角仪decarbousnic acid去羧松萝酸, 脱羧松萝酸decreasing olefin降烯烃declassified cost重分类成本decidual reaction[医] 蜕膜反应