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)
Fresnel zone菲涅耳带,菲涅耳区,菲涅耳区间隙
frunace door[机] 炉门
Fructus Comi山茱萸
fructivorousadj.吃果实为生的
fresnel spot菲涅耳光斑
frustulation螅芽压缩
frustum body平截头体
frunace flue[机] 烟道