FRESadj.耐火的FRabbr.故障率（=failure rate）abbr.故障记录（=faillure record）abbr.故障报告（=failure report）Fructus Psoraleae补骨脂Freholm structure弗雷德霍姆结构Freund's reactionfrenzied activity狂暴的活动fructus hippophae沙棘果, 醋柳果fruticose thallus枝状地衣体Frenkel's symptumFresnel ellipsoid菲涅耳椭球fresnel integrals非涅耳积分Fresnel transform菲涅耳变换