flung动词fling的过去式和过去分词形式flun.流行性感冒fluctuation frequency波动频率fluctuating overdraft浮动利率银行透支fluvioglacial deposit冰水沉积fluorochloroparaffins氟氯链烷烃fluorecent brightener荧光增白剂fluticasone propinate丙酸氟替卡松(平喘药)fluoprotoactinic acid[化] 氟镤酸; 氢氟镤酸fluorimetric analysis荧光分析fluorochemical finish氟化物整理Flupentixol Decanoate三氟噻吨癸酸酯