FRFTFlight Readiness Firing Test 导弹飞行准备发射试验FRabbr.故障率（=failure rate）abbr.故障记录（=faillure record）abbr.故障报告（=failure report）fructose phosphoketolase果糖磷酸酮酶frenulum of superior lip上唇系带Frueto-oligosaeeharide果寡糖Freund's uterine curettefrenulum praeputii penis阴茎包皮系带fresnel half period zones菲涅耳半周期带Fructus Lycii in Xinjiang新疆枸杞子Frequencies of characters字符使用频率frenulum labii inferioris下唇系带fructus oryzae germinatus谷芽