FRN=Fatigue Resistant Nylon Cord 耐疲劳尼龙帘线FRabbr.故障率（=failure rate）abbr.故障记录（=faillure record）abbr.故障报告（=failure report）Freund steel弗罗因德结构钢Frenkel pair夫伦克耳缺陷fructone-B苹果酯-BFreidenfelds弗雷登费尔兹Fruehschuetz弗吕许茨fructokinase果糖激酶fructosidase果糖苷酶, 转化酶Freund's lawfructicativeadj.能结果实的fructescence果实成熟期